In the terms and conditions of the OneUI beta program it is hinted that "my phone will be resetted" and my data will not be reverted to before enrolling into beta", does that mean if I withdraw now it will wipe my phone or not? If yes, is there a way to prevent that? Should I stay on beta until the public release?
If you withdraw and install the previous stable version you'll lose your data. There's no way to go back to stable without losing data, take a backup with Smart Switch on your PC.
You can re-install software by using the PC version of Smart Switch. Once the software is re-installed, the device will be reset and all data that was generated during the Beta Program will be erased.
All data which had been backed up before installing the beta software can be recovered, but there may be limitations in recovering data that was created after installing the beta software.
If you need assistance, Samsung Service Centres support the reinstallation of official software.
