ujust enable-virtualizationsudo systemctl enable --now libvirtd to permanently activate the service (this might have to be run again after any new major fedora release)
ujust regenerate-grub~/.local/share/flatpak/app/ublue-os/main.

steamos-session-select plasma to get back into Desktop Modereturn to game mode icon on your desktop.sudo systemctl enable --now libvirtd~/.local/share/flatpak/app/ublue-os/mainreturn to game mode