No apparently you don’t need to replace it, if you do it just starts it as root. I can start xfce4 with startxfce4 as user but i can’t start sddm as user from console, only as root. I did try changing it to x11-(username) and just (username) it was the same as just doing x11 or not having the file, although I could also have done something wrong there. At this point just changing the dm might be easier tbh. Although idk if that woulf actually work. I believe it starts x with the sddm user and not your actual user because, well, you’re not logged in