What kinds of things are you talking about?
These days I feel like all of the major desktop environments are good enough. 95% of what I do with them is launch applications and move or resize windows and that’s easy enough on all of them.
On windows you have to click the icon before you can interact with it. IIRC on Mac too.
Not anymore! This changed in some win11 update I can't remember, but I recall celebrating this improvement.
However, this being windows, of course it's half-assed. This works with the mouse wheel but not by scrolling the touchpad (as of up-to-date 24h2).