Using Fedora Kinoite/Silverblue is not really an option if you are using an Nvidia GPU. With Bazzite, the driver is pre-installed and also signed directly with a Secure Boot Key that you can import when installing Bazzite. With normal Fedora Atomic, you have to install and sign the driver manually, and with some updates, the whole thing breaks again, so you have to fiddle around with it.
In addition, Fedora Flatpak Remote has been removed, which is a “noobtrap” in normal Fedora Atomic. This allows you to install broken versions of browsers where the codecs are missing and videos don't work. In addition, Distrobox functions better than Toolbox, and in general, Bazzite's defaults are much more geared towards an immutable system. Silberblue/Kinoite's defaults are just like normal Fedora, and you have to layer dozens of things to achieve the same thing, whereas Bazzite is completely designed for a container workflow.
Even if you ignore any gaming optimizations, etc., this alone makes it a significantly better option than the official Fedora Atomic images.