Incorrect visit time measurement

[notramo]

Describe the Bug

Visit time measurement seems to be incorrect. As there are no websocket or long-polling connections, I guess it's using the unload events. However, not all browsers dispatch it reliably.
How much excess visit time is added when a browser doesn't call the unload handler? Is it configurable?

Database

Umami Cloud

Relevant log output

No response

Which Umami version are you using? (if relevant)

Cloud

Which browser are you using? (if relevant)

No response

How are you deploying your application? (if relevant)

Cloud

[github-actions]

This issue is stale because it has been open for 60 days with no activity.

[notramo]

It's not resolved.

[github-actions]

This issue is stale because it has been open for 60 days with no activity.

[notramo]

Still not resolved.