dltmchn
Okay, UPDATE:
I replaced by Windows 11 24H2 with Windows 11 21H2. Just for testing.
Windows 11 21H2: no game stuttering. At all. Games working like under Windows 10.
Windows 11 24H2: stuttering. What am i missing?
UPDATE 2:
The latest Windows 11 Canary Insider Preview 27842.1000 build is working. No stuttering.
Interesting. 🤔
Then there is something in 24H2 that conflicts with my system. Of course, this did not reveal what it is, but at least I know that the situation is not hopeless. I only have to wait until 26H2 and I will have playable Windows 11. Provided they don’t put in what makes 24H2 unplayable for me by then. 😁