I've often compared Gnome, KDE and Cinnamon, and it usually boils down to KDE is often too complicated and busy, Gnome is often too simple and braindead, Cinnamon sits somewhere in the middle.

Gnome's settings menu is missing a lot of things you'd think should be there. They don't want you changing things, so you end up installing separate packages like gnome-tweaks to actually render the OS usable. They've got this weird attitude that they're going to out-Apple Apple with a millionth of Apple's budget, and where Apple offers "Just Works", Gnome offers "Barely Does Anything."

KDE has the opposite problem, they've got a setting for literally everything, if you can find it in their overgrown single settings menu. A basic applet will have several tabs crammed full of options and UI elements, making it probably the best tool for whatever mundane task it was meant for but you have to stop and figure out how it works, and it's all rendered in janky misaligned QT so it looks like an amateur reskinned Windows 98.

Cinnamon inherits a lot from Gnome, but puts back in the shit Gnome gouged out. I tend to find things where I think to look for them, it tends to provide the functionality I need out of the box without excessive clutter. But, it's a bit behind the times with stuff like Wayland, so it's not the best choice for very modern hardware.