Technically its performance is a bit slower than CachyOS, and some of the package versions can be a bit behind as well (like Mesa or the kernel), which can contribute to the slowness. Flatpaks work fine though for the most part.

I would recommend CachyOS if you're after raw performance and you're technically inclined, and don't mind ocassionally going into the terminal to fix something or do some maintenance (maybe once or twice a year).

Bazzite on the other hand is great if you don't care much about minor FPS improvements, but value your time and system stability more. I have both installed, and use Bazzite when I want stuff to "just work" and not think about updates and maintenance. I use it for work, and for braindead gaming (ie I'm back from work and just want to dive into gaming without needing to worry about any PC stuff).

Both OSes are fine for docker/dev workflow. Multiple versions of python isn't an issue on ANY Linux system, as you would never be installing them across the system, you'd be installing them in a container or a sandboxed environment. I'd also recommend checking out Flox[1] as a fast and lightweight alternative to containers, it's great for working with Python in particular.

[1] https://flox.dev/