Now, of course, it still doesn't work with a touchpad, but baby steps, right?
But this has worked in KDE since version 3, like, 20 years ago? And also with pasystray running under i3, since before win11 was a thing. They both support scrolling with the touchpad, too.
It drove me up a wall not being able to do this when I had to use Windows at work.
As for your MRU layout thing, I'm not sure I'd like it. While I like MRU for alt-tab, i like my not-so-often-used functions to be predictable. For this specific case, I always use us-macintosh, so I'd like to be sure that if I press the shortcut X times I'll get Y layout, without having to remember the order in which I used them. Now, to be fair, in my case I only have US-Mac available since it does everything I need.
I cant wait for the number one gripe of all my users to finally be catered for.
Tabs on the other hand (and of the other type) should be able to move freely between all edges of all windows.
I haven't touched MS in this decade, but I swear that used to be a thing at least through 7...