Tackpad exprience in KDE is way better than Gnome. Well, I admit to be kinda biased, because I much prefer KDE over Gnome in general.
E.g. Scroll reverse in KDE is just the tick of a box.
So its not necessarily a „Linux“ thing, mouse/trackpad handling much depends on the desktop environment
I'm well aware of that. But trackpads in general are worse in Linux than on Windows for example.
I find KDE to be a great DE, and really fun to use. But still I'm stuck with PopOS. Simply love the experience and the simplicity