

I can not garantuee you anything, and it could be possible that things just changed in the last months. But i think until atleast around march i had been using youtube premium + mullvad without any problems. But the vpn was set to the country i live in… (i then switched to newpipe and no vpn for youtube)
delete your account and get always on mullvad vpn, reddit often blocked the vpn exit node, so you just can not use it then lol (but sometimes it works still)