@VladTop46
About resizing windows - in the video it seems smooth for me, but probably I can’t see it, because it’s the youtube video and I can’t help anything about that.
Regarding improved smoothness when recording - that’s very strange and 99% Nvidia’s driver fault IMO. I have similar issue regarding browser scrolling but only on Wayland. Check out the topic I created: my issue (please give it a thumbs up or some comment, it you encounter something like this). When testing my issue I noticed 2 things: when GSP firmware was disabled, it improved smoothness, and also recording with OBS or Gpu Screen Recorder improves smoothness even more.
For now I use closed driver with GSP disabled and I use a little hack workaround regarding recording. I use Gpu Screen Recorder, and I set it up in such a way, that it autostarts via systemd service during boot. And since it starts recording since boot, it greatly improves my desktop smoothness. It also uses basically 0 resources (less than OBS). I recommend checking it out, on the author’s website: https://git.dec05eba.com/gpu-screen-recorder/about/ (it also says how you can setup such a systemd service)