It’s an alternative shell for Plasma, so theoretically you should be able to do anything in it that you can do in Plasma.
On my Arch box it installed a minimal set of Plasma utilities to support it, which means my setup is still very limited (and I can’t turn off screen lock!), but I haven’t tried if it would change if offered a full Plasma install.
I can most certainly launch Steam, Kodi, Jellyfin etc.
It’s an alternative shell for Plasma, so theoretically you should be able to do anything in it that you can do in Plasma.
On my Arch box it installed a minimal set of Plasma utilities to support it, which means my setup is still very limited (and I can’t turn off screen lock!), but I haven’t tried if it would change if offered a full Plasma install.
I can most certainly launch Steam, Kodi, Jellyfin etc.