I want several, hard, discrete desktops. I want one that I can toss a bunch of graphics files onto that has something kin to "Fences" so I don't have to navigate the file explorer. And with the flick of a button I can move to a different desktop that I've set up for work, one for play and etc... I think Ubuntu used to have something similar, though I wouldn't be surprised if it actually behaves much like Windows and is just a window manager.
I do a lot on the desktop to specifically avoid the file manager because file managers seem to be intrinsically unnavigable. And then there's inconsistencies between applications which is enough to press me ever closer to an aneurysm. Going between the Win10 file explorer and one from Win95 a la ImageJ is awful.
Shit, with a system like that I reckon you could almost get away without a file explorer.