OK I did not know the desktop could do that, that’s actually pretty cool. I assumed you were talking about virtual desktops but I didn’t realise the icon space on the desktop can spill of screen and then be scrolled.
That’s actually pretty useful - could keep some less used links of screen until you want and scroll them back into view
Plasma Wayland or Plasma X11?
Nvidia and Wayland still has issues, even though KDE is defaulting to Wayland. Personally I don’t think Wayland is fit for purpose at present so I use X11. I have an Nvidia GPU (3070) and no issues with games including older games in X11.