Found the solution here:
And now the choppiness is gone with 6.12.4
I have to say, this was my first ever experience with an AMD chip, but I’ve almost completely lost faith in them providing a good experience on Linux.
Compared to my previous Intel-based DELL, I have far worse battery life and many more unpredictable behaviors. The GPU drivers are a constant source of regressions (they already took a while to become “usable”, anyone with this HW in 2023 will remember the infamous hard freezes when watching youtube in full screen, among others).
CPU also occasionally locks up (check threads opened by me recently, there’s one about workqueue lockup).
It’s a bit of s*itshow, TBH.
Next chip will be Intel again.