Functions such as Wi-Fi and Accessibility have deeper menus such as being able to view the Wi-Fi list, or enabling/disabling certain ease of access functions. I like the new Quick Settings panel, though I wish it was a little more in-depth with some of its submenus. Hopefully, this will improve before Windows 11 ships. You have to move it a few pixels in so that it's exactly on the show desktop button, which is causing issues for lots of people who used to be able to aimlessly through their cursor into the corner and click. That said, Microsoft has moved the Show Desktop button ever so slightly so that it no longer works when you mouse your cursor into the very far corner. This is so the System Tray area looks clean while maintaining that legacy feature, and I much prefer it this way. On the far right of the Taskbar is the 'Show desktop' button which still exists but is now invisible until you hover your cursor on to it. The System Tray still includes the old-school overflow menu where apps go to store an icon if they run in the background, and you can still move these icons to the main System Tray on the Taskbar if you wish. Source: Windows Central (Image credit: Source: Windows Central)

Microsoft surface action center