I wiped Win11 from my Ideapad and installed Ubuntu. I love Gnome & it's the closest it'll get to MacOS (am a Mac user mainly). Win11 was absolutely wild though - around every corner was some ad for Office365 or Copilot or some other shit product. You don't own Windows (anymore) - you borrow it.
1. Needs to fix keybindings, including setting readline shortcuts across all gui textfields. May be effectively impossible with so many gui toolkits floating around.
2. Needs a gui to manage configuration of startup items, login items.
3. Portable application distribution rather than futzing with installing a third party package source (may be effectively impossible for gui apps).
4. Cleaner systemd configuration tooling and especially documentation, even if it can't be expressed via a gui.
5. Cleaner process management.
6. Cleaner user management via GUI.
The look and feel mostly doesn't matter tbh; you'll just end up with something that looks like macos but still mostly functions like windows but without consistent keybindings or behavior or system management.
As a lifelong Mac user, I'm mildly tempted to do something like this in SteamOS, but with limited real estate: two panels feels like potentially wasting pixels, and the bottom edge is probably easier to reach on a touchscreen gaming handheld. I'll do some tweaking, but the ultimate UX has to feel right on this device, not just familiar to what I use elsewhere. Plus, I mostly use Desktop Mode for Chrome, which doesn't really use the menu bar.