Simple people cannot understand SAMSUNG's logic. Series S20 has started participating in the ONE UI 4.0 Beta Test. And we are still waiting for a build for Europe !!! No comments...
The company could release the stable Android 12 update to dozens of Galaxy smartphones and tablets starting next month.
So maybe the final will be right away and we won't get the Beta test !!
Don't forget that Samsung has a track record of delivering software to the UK after everyone else and also of releasing updates to the Z-Flip/Fold as an afterthought. E.g., budget models have been receiving the November 2021 security patch for a while already while the Z-Fold3 only just got the October 2021 patch around 22/10.
I fully expect to see the OneUI 4 Beta program open up to Z-series users in the UK once most other flagships already have the official release of Android 12/OneUI 4.