With these, do you get a full desktop environment or are they quite specific to being that home entertainment experience, more like a smart TV?
So, if intended as a HTPC, both Bazzite and ChimeraOS are ‘meant’ to be used with Gamepad UI; i.e. the one found on the Steam Deck. Of course, this is your console experience. However, just like the Steam Deck itself, it offers access to its so-called “Desktop mode”. Which, as you’d expect, is a full desktop environment. For Bazzite, you get to choose between GNOME and KDE Plasma. While ChimeraOS currently only offers GNOME.
LibreELEC, on the other hand, is a distro that merely functions as a wrapper for Kodi. Hence, there’s no desktop environment (by default).