The main thing I think is missing is universal support for kinetic/inertial scrolling, where you can fling your fingers on the touchpad and it keeps going after you stop. It seems to work with GTK but not Qt
I would find that incredibly annoying for touchpad inputs. Sure, I can understand kinetic input for touchscreens, but touchpads should be precision inputs, not the sort of thing where accidentally bumping two fingers on the touchpad sends you two pages down.
It doesn't have to. That's why there are usually various thresholds when dealing with input devices. Like dead zones in controllers. Ideally you should both have inertial scrolling when you intend it and precise scrolling when you don't.
I am suffering that ever since I switched to wayland and the newer GTK version that supports it.
Turns out, in classic GNOME fashion, there's no setting to disable inertia scroll.
And I hate it. I hate it. I hate it.
It is the same problem with smooth scroll, or as I call it "laggy scroll", which forces me to watch an animation, when I made it clear (by scrolling) that I want to be seeing the scroll destination already. That's why I scrolled in the first place!