Apart from if they are going to use their PC for anything else than gaming.
Why would Bazzite be worse for everything else than gaming? It's literally just a Fedora variant with some quality of life stuff preinstalled. All the stuff that (K)Ubuntu requires jumping through hoops (most notably Flatpak) is preinstalled and the entire software repository is officially supported unlike Universe in Ubuntu (KDE software is in Universe, hence why the backports PPA is pretty much mandatory).