Editor 3D Viewport mouse controls broken on Windows

[smix8]

Tested versions

e5b4ef8

System information

Windows 10

Issue description

Bisect and PR #84363 broke the (right) mouse input in the Editor 3D Viewport.

E.g. right mouse camera view does no longer work or has janky focus loss.
If you hold the right mouse button to move the camera it only moves for a split-second and then starts to drop input.

Steps to reproduce

Use the (right) mouse on Windows to interact with the Editor 3D Viewport.

Minimal reproduction project (MRP)

N/A

[smix8]

@RandomShaper