Who asks that? the desktop shell is so outdated! they need to do a lot of work! so I think taking a crack at a redesign makes perfect sense.
Your suggestions aren’t bad, but I don’t think you delve as heavily into the redesign as you might? Lately I’ve been fiddling around a lot with Linux because I use it in an art hobby project to run neural networks. There’s a lot of approaches to handle the desktop shell that could be considered. I haven’t been super happy with a lot of them but I think the issue could be pushed further. (your tab addition idea is on point btw!)