You shouldn’t talk to customer support agents like that. They’re not responsible for the actions of the shitty company, and you are giving them a bad day for no reason.
Gnome has a Save Desktop app which backs up your desktop config, list of Flatpak apps, and the folders you choose. I use Bazzite but I’m not locked in.
LibreWilf is a good choice if you don’t want the Mozilla crap. Just make sure to turn off the cookie clearing and resistFingerprinting then enable WebGL in the browser’s settings.