Switching Between Desktops (GNOME vs KDE)

[JohnAtl]

I would try it in a vm, or from a usb.
Switching between desktops isn’t supported.

How can rebasing between desktop enviornments cause issues

First up, this is an enthusiast question. In the past, I have installed multiple desktop environments (DE) on Ubuntu and paid the price! Multiple programs for the same purpose, icon sets, funky window borders, uninstalling etc. But I thought that rebasing would resolve most of these issues. Yet this practice is still discouraged [1, 2]. In theory, I understand how different DE configs can mess up things. But if I assume no layering performed by the end user, only flatpak or homebrew installs, wh…