Just from the promos I’ve seen the window management and assigned spaces (work, design, etc) are the features I’ll be most jealous of.
?! This is what I've been doing in macOS for nearly 10 years.
Use separate spaces with separate apps (I could have set different wallpapers but don't like that). And have these spaces and apps smoothly transition when I dock/undock my MacBook.
My left most space is stuff I am working on.
Then I have a fullscreen Mail space.
Fullscreen calendar space.
A space with Messages, WhatsApp, Teams, JIRA in a 2x2 layout.
And then 1-2 additional spaces for private stuff, or another project if I work on multiple things concurrently.
When I saw the Windows 11 demo I actually started laughing: "Wait, you couldn't do this in Windows before? Welcome to the party... 10 years later!"
Plus STILL no tabs in Explorer. And still no expanding folders in list view, so you can see the contents of multiple folders at the same time.