Try this setting: Display Configuration > Screen tearing: Allow in fullscreen windows. Whatever it’s set to, try the other setting. I had a similar issue once and this fixed it. The issue came back a long time later and switching it again fixed it. 🤷‍♂️

It’s a difficult issue to pin down. I’ve also read about video stuttering while trying to stay synched to pipewire audio which is having buffer underruns, even if your audio sounds fine. To check the audio buffer, you install and run pw-top and then watch it while you are having the video problem.

In the USA, Section 230 protections are going away in 2027 so that should finish off any remaining forums.

Rip out your USB port and use wireless charging. It at least slows the authorities down, they would have to fix the port first.