I love how I can just casually uninstall the entire desktop and install a new one in a few minutes.

genuinely curious since I’ve never tried or even considered it. What happens when you have multiple desktops installed, and assuming it doesn’t cause issues why would a person want to do that?

There’s no added value to having multiple desktop environments, so almost no one would want to. A lot of applications use DE sensitive configurations and there’s potential for conflicts as well as libraries incompatibility. Which can result on paradoxical and bizarre behavior from some graphical apps. It’s odd that it happens but it’s also not something devs plan or account for, so they aren’t even considered bugs. You don’t install multiple DEs at the same time unless you’re purposefully trying to break something or you don’t know better.

I don’t use linux on desktop anymore but that seems like a major step backwards from 10 years ago where your worst worry for running multiple DEs was the bloat from having to run GTK and QT in a mixed environment.