No, however I still suggest you run a full backup with the PC version prior to downgrading. The restore should save a lot of the settings and data for most of your apps (like switching phones).
You need to withdraw from the beta from Samsung Members -> Settings -> One UI Beta Program Status -> Withdraw. Then plug the phone into your PC, open up the PC version of smart Switch. Be sure to back up your phone since downgrading requires a factory reset. We recommend you try backing up your device and performing a master before moving back to Android 12.
