Since WinUpdate LFS minimized randomly

[Brixton]

Have 2 Screens. Its a Laptop (Acer Predator) + a Screen on HDMI.
And it happends while gaming. No matter if I stand still and just wait or drive with XBox Controller.

It runs on fullscreen (Shift+ F10).

What I have tried and dont solve the issue:
- Another Windows Update (still same build, sure)
- Update Nvidia Driver
- uninstall Malwarebytes (cause its not running well, reinstall it later again)
- deactivate the WpnService (Push notice) in service control
- deactivate avast components for 1 hour

And I have again checked, that every notice service for any app, windows or contacts (what I dont use btw, so contacts are empty) is deactivated or disabled.

Still same issue. Sometimes after 2-3 min, sometimes after 15 min

Next try: Deactivate every adobe service.

edit: Dont work. No diffrence....thats so annoying