Bazzite is atomic (not immutable), same with Silverblue and other Fedora variants (they're all atomic, even on their main page it says atomic). It's kinda misleading ngl
Fedora silverblue include basically nothing in its default installation, you have to install all drivers/codecs/fonts yourself. Its better to use UBlue images which contain preinstalled most things by default.
Make sure you have Bluetooth enabled in your firmware