Not that your IT department will be letting you update today, but something to look forward to is that Teams in Windows 11 uses the shared Edge WebView runtime (replacing Electron), which means it takes around 50% of the RAM it did in Windows 10.
Also, WSL graphics support (which isn't coming to Windows 10 for some reason), winget has been moved to stable (that is coming to Windows 10), and Windows Terminal is included in the box (but doesn't replace the cmd.exe or powershell.exe terminal emulator for some reason).
Also, WSL graphics support (which isn't coming to Windows 10 for some reason), winget has been moved to stable (that is coming to Windows 10), and Windows Terminal is included in the box (but doesn't replace the cmd.exe or powershell.exe terminal emulator for some reason).