Can’t log in to Phoenix Labs account

I was trying to change the name of my character via my account, but it won’t let me log in at all. I don’t have a steam account, epic games account, or xbox account, and idk if my PlayStation account will work bc I don’t even have the game on PlayStation, it’s in switch. The switch method REFUSES to work, the switch won’t open the page account authorization redirects you to, and the support code is unhelpful since it claims it’s an internet connection problem, but my connection is fine. Is it bc of the upcoming closure? If so…wtf are we supposed to do abt our account names tied to the game 💀 I remember we were able to name our characters normally in the demo, no clue why we couldn’t do that in the full release on single player.