Lost previous worlds (both single and multiplayer)

Since the update, I've had no trouble getting on worlds I have played on during 1.17 whether they're personal or multiplayer servers yet when I tried to play tonight none of them showed up as if I had a fresh account (which I don't because been playing for awhile now). All I did was install fabric before this though I didn't select it when starting the game. I'm not sure if that did something but I'm not sure how to get back worlds I have/played on. Please help!