So, before, I have installed another desktop environment which after installation it made a startup sound, and changed one of my fonts, and things like these which I could never make them like before.
Also as it says in Will I have problems installing multiple desktop environments?
However, desktop environments will often "argue" with each other and overwrite settings.
Made me sure it's not a random thing that just happened for me.
now after a while, again, It passed my mind to have multiple desktop environments. Is there anyway to install them without them arguing and interfering with each other and without overwriting settings and etc.. ?
So, I tested installing other desktop environments alongside gnome,(I installed kde and cinnamon) and logging into each with a different user, so the config files of the envs don't interfere.
as long as I see, There will be no issue if you always use one desktop environment for each user.