Bazzite comes ready to rock with Steam and Lutris pre-installed, HDR support, BORE CPU scheduler for smooth and responsive gameplay, and numerous community-developed tools for your gaming needs.
The thing is, Bazzite isn’t really a distro in it’s own right, which they admit themselves. It is essentially Fedora with a bit extra on top, and it gets all the updates Fedora does at the same time. It seems like they’re trying to “solve” some of the issues with other gaming distros. As far as pre-installed software, it comes with Steam and Lutris pre-installed. Sure, there are some linux gamers out there that don’t need those, but the vast majority will use them. Apart from those, it has the graphics drivers pre-installed for your system, based off your iso choice. Everything else is installed by choice through a first-boot wizard.