Biggest reason was because Bazzite is immutable. Great idea in theory but in practice it actually made a few things more difficult for me. Mostly because of simracing and VR stuff. The things i wanted to do are possible with Bazzite but i was just to dumb to do it. CachyOS is a bit more involved in the setup process i would say. But their wiki is great and guided me very well. Beeing arch based i could get a few things(again simracing and VR) i wanted to do just from the AUR which made it a bit easier.

I would say Bazzite has more guardrails which is great until you want/need to overcome them and then it gets more complicated. Thats how i feel at least. With CachyOS you are free to do whatever you want to. But its also easier to fuck up. But so far with the help of the wiki and their discord for a few quick questions everything worked out for me.

Oh, but KDE broke not once but already twice since last august after updates. No biggie with limine and snapshots. Just reverted to the last working version in 2 minutes and my system was working again. In both cases i just updated again after a few days and everything was fine. But Bazzite never broke for me once tbf!