The option is called portrait/auto rotate. In the extra controls

You have to rollback/downgrade from beta version to official verson through samsung smart switch. Once u downgrade and restart the phone.. you'll see the latest one ui 8.5 update. But downgrading, you'll loose all the data. So make sure to backup

If u had joined beta program and left the beta before you updated to stable version.. you have to rollback/downgrade from beta version to previous stable version. Only then you'll get the latest stable update and security patch. Check in the beta pro...

Did not work.. the fonts are still paid.