Try it. We’ve done it before, and it often yields a bit more than the average we’ve seen. Down in south Texas

Yes. Some distros even have airselot (I think that’s how it’s spelled) installed out of the box

Might be able to find a flatpak and use flatseal to restrict it as much as possible

It’s supposed to mimic how you scroll on your phone. Fine for TouchPads (depending on when you learned to use it(i.e., if you learned to use a touch pad after learning to use a smart phone then it would make, slightly, more sense)), abhorrent for mice.

Same with fedora iirc.

I’ve used fedora for a long time and pretty much had the same experience you described. It works until some random obscure program doesn’t like Wayland.