Since I installed Windows 11, I think the only reported bug I experienced was one related to HDR. It was automatically activating Dolby Vision, which changed the desktop colors, but all I had to do was go to the menu, disable HDR, and then re-enable it. However, this was soon fixed.
I think it helps that I used WinUtil to remove any kind of bloatware from my PC. And the updates are in manual mode, so I only update every 1 or 2 months, but I've gone as long as 4 months without updating.
Another fact is that I only use this machine for gaming or watching videos. If I used it daily, I would probably see more problems.