i7 8700k; 5ghz (water cooled), Asus Rog Strix Z370-E Gaming, Corsair 270R case, EVGA 3090 FTW3 Ultra, 32 GB Corsair Veng DDR4 2666 Ghz, Adata SX900 SSD, 1TB M.2 SSD, Adata Su800 SSD, Adata SU650 SSD, BarraCuda 2TB HD, Toshiba 3tB HD, Rift (dead), Rift S, Win 10 Pro 2004, Inateck KT4006 USB3.0
It's hard to explain but when I got my quest 2 I accidentally hit new user and no matter what I did it wouldn't allow me to go back so oculus suggested I continue as a new user. What a pain that was.
You could have just performed a Factory Reset. That's what I did on my Quest 2 in order to switch out which accounts I was linking it to.