I tried to use Ubuntu for a bit but I just wanted to have regular Firefox with the built in updater, turns out this is way more of a hassle than it is on Windows.
It shouldn’t be that hard to “install” a program like Firefox directly from a website but all you get is an archive thing that you have to manually “install” basically, it’s tricky enough that someone wrote a tool just do do this: gitlab.com/…/Firefox-automatic-install-for-Linux
APT and Flatpacks are all cool but an offline installation should still be available and easy to use without being forced to use a terminal. Maybe I’m incorrect and I would love to hear about it but this is my experience.
Steam for whatever reason is basically installed the same way on windows as on PC in terms of user experience, you download a file and double click it. Maybe it’s Mozillas fault? Who knows, it’s frustrating in any case.