Haven’t used bazzite, but there is an App Store you can get all of the apps anyone would need.

Its one of the quirks of a lot of the atomic distros. Because they are specifically built around the idea of having a specific set of packages at a specific range of versions for every rev of the distro itself… adding more packages is kind of a clusterfuck.

For flatpaks (and I think appimages too?), it is seamless. For anything else you are googling the commands to add packages as “layers” and so forth

And, to be fair to Bazzite (which I use for my HTPC and love it on there), I have had zero issues with actual gaming. Steam out of the box and Heroic is one flatpak away. But holy shit was adding iperf3 to test some network infrastructure tweaks a Thing.

Its why I personally recommend to friends to just raw dog Fedora rather than use one of the atomic distros. Atomic distros make a lot of sense for deployed machines but for anything someone is going to use as “their” computer? Just learn to not type sudo before every command you run… and maybe get a jetkvm so your tech savvy friend can fix your computer after an nvidia driver update.