I think I see one difference - I'm not trying to use each environment the same. My iPad wants everything to be full screen, so that's how I use it (although I have been playing with Stage Manager). Windows has good support for tiling now, so I use that. On Gnome I lean into the workspace stuff. KDE I don't know as well, so I use the mouse for just about everything.
I enjoy learning the ins and outs of the different environments and frankly I wish the differences ran even deeper. I often think about how fun it would be if Commodore Amiga, Atari ST, BeOS, SGI IRIX, OS/2, Sun CDE, and all the other systems were still being developed. But then the Electron / web app people would probably still try to pave over everything cool and unique on each system to run one mediocre app everywhere.
I understand that GNOME has a clear way how it wants you to use the desktop, but I don't like that way for the reasons I described. And it's not just a 'different' way, I feel like I lose functionality and flexibility in a lot of regards. Although, I guess it's hard to say for sure since I never used GNOME for an extended period of time.
That's the beauty of different systems. You always lose functionality no matter which way you switch. A Windows user might miss PowerShell + COM on Linux. A Linux user would miss having access to the filesystem on iOS. An iOS user misses the ubiquitous URL scheme for sharing code and data when they switch to Windows or Linux. I still miss Rexx and the object-oriented workplace shell of OS/2.
I'm sure if you gave GNOME an extended trial, you would adapt and find some things you actually prefer.
I enjoy learning the ins and outs of the different environments and frankly I wish the differences ran even deeper. I often think about how fun it would be if Commodore Amiga, Atari ST, BeOS, SGI IRIX, OS/2, Sun CDE, and all the other systems were still being developed. But then the Electron / web app people would probably still try to pave over everything cool and unique on each system to run one mediocre app everywhere.