Whenever dragging windows around, there are very obvious trails that follow, which overall gives it a very non-smooth feeling. I have the relevant NVIDIA drivers installed from the repository:
I no longer have an nvidia laptop, but when I di, I seem to recall there was some grub switch I had to use to prevent tearing. Maybe “nvidia-drm.modeset=1” which you can add to kernel parameters line through YaST -> bootloader. If that’s not exactly right, you might try googling “nvidia tearing modeset” - I seem to recall there’s a way to do it via gru and another way via config file, but the syntax is a little different between them.
Yes, the modeset option looked promising but (maybe I didn’t enable it correctly?) it didn’t make any difference.
I stumbled upon the compositor options for desktop effects, and fiddled with the settings there - for now it seems to be better, but I guess time will tell. Thanks for the suggestion!