Along with what others have said about it being a great ootb experience for anyone looking to play games. It is also immutable so you can't fuck it up too easily. And the very popular YouTube channel gamers nexus has started doing their Linux testing exclusively on bazzite. I think the latter is playing one of the biggest parts, while the previous two points are specifically why they choose bazzite.

As I understand it, it's atomic Fedora with virtually everything you might need to game on Linux baked in (no need for layering) and more or less preconfigured. Off the top of my head, proprietary Nvidia drivers, Steam, Lutris, Hero launcher, support for Xbox One wireless controller dongle, plus a number of useful tools like Tailscale. An app with a catered list of gaming-oriented flatpacks, one click updating. Also a lot of effort into replicating the Steam Deck experience for handheld devices or devices connected to a TV.

I believe they also do Aurora, which is similarly geared toward workstations with a ton of container-related tools like distro box readily available to easily use containers instead of layering where possible. The same tools may be available in Bazzite but I never checked. I have Aurora on my laptop and use a dedicated gaming device with Bazzite.

I'm not a Linux veteran by any means but I was hopping distros looking for something I could install on my family's computers I tried atomic Fedora. When using it for myself, I became frustrated with the number of tools I use that needed to be layered or run in a container and eventually found myself on Bazzite and Aurora. So far so good.

Besides the reasons others mentioned, it's also popular as an OS for gaming handhelds, like the Steam Deck, Lenovo Legion Go, ASUS Ally X and what have you.

Imagine you like video games. You install Bazzite. You have Steam, with only a little checkbox (to allow playing on linux). It works, you can play, you have a "playstore" if you need something. You have really little to do if you don't go outside Steam and the playstore.

It's the "just works" distro for people who want to play games.

A lot of things are built into it to be easily installable with less user effort. Has nice defaults. I use cachyos on my pc but on my handheld a lot of stuff wasn't working by default, like the handhelds buttons/joystick. On bazzite everything works by default. (Think it's one terminal command to install what is needed for controls in cachyos, but it didn't work by default) You can still download whatever using rpm ostree, as a user idr know the difference. Grabbed gparted that way. Bazzite has the ujust command which gives you a lot of options for modifying and installing stuff easily like waydroid, emudeck, plugins, etc.

Also prefer gnome with extensions on touchscreens and handhelds, while everything else comes with kde and it's apps by default. Kde isn't bad at all and only 1 extension on pc (window thumbnails to pip any window) has me staying on gnome, but gnome works so much better for touchscreens and smaller devices.

It’s the most plug-and-play Linux has ever been from my experience.