diff --git a/chrome/browser/apps/app_service/app_service_proxy_chromeos.cc b/chrome/browser/apps/app_service/app_service_proxy_chromeos.cc
index 76eb3d7cedf308..dcb089f7aedb4e 100644
--- a/chrome/browser/apps/app_service/app_service_proxy_chromeos.cc
+++ b/chrome/browser/apps/app_service/app_service_proxy_chromeos.cc
@@ -48,11 +48,15 @@ bool g_omit_plugin_vm_apps_for_testing_ = false;
 }  // anonymous namespace
 
 AppServiceProxyChromeOs::AppServiceProxyChromeOs(Profile* profile)
-    : AppServiceProxyBase(profile),
-      browser_app_instance_tracker_(
-          BrowserAppInstanceTracker::Create(profile_, app_registry_cache_)),
-      browser_app_instance_registry_(BrowserAppInstanceRegistry::Create(
-          browser_app_instance_tracker_.get())) {
+    : AppServiceProxyBase(profile) {
+  if (features::IsBrowserAppInstanceTrackingEnabled()) {
+    browser_app_instance_tracker_ =
+        std::make_unique<apps::BrowserAppInstanceTracker>(profile_,
+                                                          app_registry_cache_);
+    browser_app_instance_registry_ =
+        std::make_unique<apps::BrowserAppInstanceRegistry>(
+            *browser_app_instance_tracker_);
+  }
   Initialize();
 }
 
diff --git a/chrome/browser/apps/app_service/app_service_proxy_lacros.cc b/chrome/browser/apps/app_service/app_service_proxy_lacros.cc
index f6ee70977ebf69..bbbc9be54186d3 100644
--- a/chrome/browser/apps/app_service/app_service_proxy_lacros.cc
+++ b/chrome/browser/apps/app_service/app_service_proxy_lacros.cc
@@ -96,11 +96,16 @@ AppServiceProxyLacros::AppServiceProxyLacros(Profile* profile)
       icon_coalescer_(&inner_icon_loader_),
       outer_icon_loader_(&icon_coalescer_,
                          apps::IconCache::GarbageCollectionPolicy::kEager),
-      profile_(profile),
-      browser_app_instance_tracker_(
-          BrowserAppInstanceTracker::Create(profile_, app_registry_cache_)),
-      browser_app_instance_forwarder_(BrowserAppInstanceForwarder::Create(
-          browser_app_instance_tracker_.get())) {
+      profile_(profile) {
+  auto* service = chromeos::LacrosService::Get();
+  if (service && service->init_params()->web_apps_enabled) {
+    browser_app_instance_tracker_ =
+        std::make_unique<apps::BrowserAppInstanceTracker>(profile_,
+                                                          app_registry_cache_);
+    browser_app_instance_forwarder_ =
+        std::make_unique<apps::BrowserAppInstanceForwarder>(
+            *browser_app_instance_tracker_);
+  }
   Initialize();
 }
 
diff --git a/chrome/browser/apps/app_service/browser_app_instance_forwarder.cc b/chrome/browser/apps/app_service/browser_app_instance_forwarder.cc
index 73b569d0499892..711ab1469fe51d 100644
--- a/chrome/browser/apps/app_service/browser_app_instance_forwarder.cc
+++ b/chrome/browser/apps/app_service/browser_app_instance_forwarder.cc
@@ -12,7 +12,6 @@
 #include "chrome/browser/lacros/window_utility.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_window.h"
-#include "chrome/common/chrome_features.h"
 #include "chromeos/crosapi/mojom/app_service.mojom.h"
 #include "chromeos/crosapi/mojom/browser_app_instance_registry.mojom.h"
 #include "chromeos/lacros/lacros_service.h"
@@ -30,14 +29,6 @@ BrowserAppInstanceForwarder::BrowserAppInstanceForwarder(
 }
 BrowserAppInstanceForwarder::~BrowserAppInstanceForwarder() = default;
 
-std::unique_ptr<BrowserAppInstanceForwarder>
-BrowserAppInstanceForwarder::Create(BrowserAppInstanceTracker* tracker) {
-  if (!features::IsBrowserAppInstanceTrackingEnabled()) {
-    return nullptr;
-  }
-  return std::make_unique<BrowserAppInstanceForwarder>(*tracker);
-}
-
 void BrowserAppInstanceForwarder::OnBrowserWindowAdded(
     const apps::BrowserWindowInstance& instance) {
   registry_->OnBrowserWindowAdded(instance.ToUpdate());
diff --git a/chrome/browser/apps/app_service/browser_app_instance_forwarder.h b/chrome/browser/apps/app_service/browser_app_instance_forwarder.h
index 4a368b99037f18..d2cc486cfb3bc0 100644
--- a/chrome/browser/apps/app_service/browser_app_instance_forwarder.h
+++ b/chrome/browser/apps/app_service/browser_app_instance_forwarder.h
@@ -5,8 +5,6 @@
 #ifndef CHROME_BROWSER_APPS_APP_SERVICE_BROWSER_APP_INSTANCE_FORWARDER_H_
 #define CHROME_BROWSER_APPS_APP_SERVICE_BROWSER_APP_INSTANCE_FORWARDER_H_
 
-#include <memory>
-
 #include "base/scoped_observation.h"
 #include "chrome/browser/apps/app_service/browser_app_instance_observer.h"
 #include "chrome/browser/apps/app_service/browser_app_instance_tracker.h"
@@ -25,13 +23,6 @@ class BrowserAppInstanceForwarder
     : public apps::BrowserAppInstanceObserver,
       public crosapi::mojom::BrowserAppInstanceController {
  public:
-  // A factory method to make the creation of the forwarder optional to keep it
-  // behind a flag.
-  // TODO(crbug.com/1203992): Remove this when the |kBrowserAppInstanceTracking|
-  // flag is removed.
-  static std::unique_ptr<BrowserAppInstanceForwarder> Create(
-      BrowserAppInstanceTracker* tracker);
-
   explicit BrowserAppInstanceForwarder(BrowserAppInstanceTracker& tracker);
   ~BrowserAppInstanceForwarder() override;
 
diff --git a/chrome/browser/apps/app_service/browser_app_instance_registry.cc b/chrome/browser/apps/app_service/browser_app_instance_registry.cc
index 8afeff7b20884d..ab2f781989e067 100644
--- a/chrome/browser/apps/app_service/browser_app_instance_registry.cc
+++ b/chrome/browser/apps/app_service/browser_app_instance_registry.cc
@@ -11,7 +11,6 @@
 #include "chrome/browser/apps/app_service/browser_app_instance_map.h"
 #include "chrome/browser/ash/crosapi/browser_util.h"
 #include "chrome/browser/ui/browser_window.h"
-#include "chrome/common/chrome_features.h"
 #include "components/exo/shell_surface_util.h"
 #include "ui/views/widget/widget.h"
 #include "ui/wm/public/activation_change_observer.h"
@@ -46,14 +45,6 @@ BrowserAppInstanceRegistry::BrowserAppInstanceRegistry(
 
 BrowserAppInstanceRegistry::~BrowserAppInstanceRegistry() = default;
 
-std::unique_ptr<BrowserAppInstanceRegistry> BrowserAppInstanceRegistry::Create(
-    BrowserAppInstanceTracker* ash_instance_tracker) {
-  if (!features::IsBrowserAppInstanceTrackingEnabled()) {
-    return nullptr;
-  }
-  return std::make_unique<BrowserAppInstanceRegistry>(*ash_instance_tracker);
-}
-
 std::set<const BrowserAppInstance*>
 BrowserAppInstanceRegistry::GetAppInstancesByAppId(
     const std::string& app_id) const {
diff --git a/chrome/browser/apps/app_service/browser_app_instance_registry.h b/chrome/browser/apps/app_service/browser_app_instance_registry.h
index 428acb7e7c8848..4e75ab62887282 100644
--- a/chrome/browser/apps/app_service/browser_app_instance_registry.h
+++ b/chrome/browser/apps/app_service/browser_app_instance_registry.h
@@ -50,13 +50,6 @@ class BrowserAppInstanceRegistry
       BrowserAppInstanceTracker& ash_instance_tracker);
   ~BrowserAppInstanceRegistry() override;
 
-  // A factory method to make the creation of the registry optional to keep it
-  // behind a flag.
-  // TODO(crbug.com/1203992): Remove this when the |kBrowserAppInstanceTracking|
-  // flag is removed.
-  static std::unique_ptr<BrowserAppInstanceRegistry> Create(
-      BrowserAppInstanceTracker* ash_instance_tracker);
-
   // Get all instances by app ID. Returns a set of unowned pointers.
   std::set<const BrowserAppInstance*> GetAppInstancesByAppId(
       const std::string& app_id) const;
diff --git a/chrome/browser/apps/app_service/browser_app_instance_tracker.cc b/chrome/browser/apps/app_service/browser_app_instance_tracker.cc
index c8436eb1f2f671..83b1d72eac4c94 100644
--- a/chrome/browser/apps/app_service/browser_app_instance_tracker.cc
+++ b/chrome/browser/apps/app_service/browser_app_instance_tracker.cc
@@ -21,7 +21,6 @@
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/browser/web_applications/web_app_tab_helper.h"
-#include "chrome/common/chrome_features.h"
 #include "components/services/app_service/public/cpp/types_util.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/navigation_controller.h"
@@ -139,16 +138,6 @@ BrowserAppInstanceTracker::~BrowserAppInstanceTracker() {
   }
 }
 
-std::unique_ptr<BrowserAppInstanceTracker> BrowserAppInstanceTracker::Create(
-    Profile* profile,
-    AppRegistryCache& app_registry_cache) {
-  if (!features::IsBrowserAppInstanceTrackingEnabled()) {
-    return nullptr;
-  }
-  return std::make_unique<BrowserAppInstanceTracker>(profile,
-                                                     app_registry_cache);
-}
-
 std::set<const BrowserAppInstance*>
 BrowserAppInstanceTracker::GetAppInstancesByAppId(
     const std::string& app_id) const {
diff --git a/chrome/browser/apps/app_service/browser_app_instance_tracker.h b/chrome/browser/apps/app_service/browser_app_instance_tracker.h
index ed23b068776fcb..8dbbcdde3c5c80 100644
--- a/chrome/browser/apps/app_service/browser_app_instance_tracker.h
+++ b/chrome/browser/apps/app_service/browser_app_instance_tracker.h
@@ -55,14 +55,6 @@ class BrowserAppInstanceTracker : public TabStripModelObserver,
   BrowserAppInstanceTracker& operator=(const BrowserAppInstanceTracker&) =
       delete;
 
-  // A factory method to make the creation of the tracker optional to keep it
-  // behind a flag.
-  // TODO(crbug.com/1203992): Remove this when the
-  // |kBrowserAppInstanceTracking| flag is removed.
-  static std::unique_ptr<BrowserAppInstanceTracker> Create(
-      Profile* profile,
-      AppRegistryCache& app_registry_cache);
-
   // Get all instances by app ID. Returns a set of unowned pointers.
   std::set<const BrowserAppInstance*> GetAppInstancesByAppId(
       const std::string& app_id) const;