I don’t think Ubuntu is ruined so much as that Bazzite is very focused on the gaming use case and is a better choice if that’s what you want to do. I use Ubuntu and have tried Bazzite (in a VM with an Nvidia GPU pass thru). Bazzite made the Nvidia based install incredibly easy, and is a particularly good choice for VFIO. I personally use Ubuntu specifically because it’s the same OS as my cloud servers. They solve real problems in that space.