Hey there and welcome to the Samsung UK and EU Community Customer to Customer Forum
Only those who signed up to beta back in Q4 2024 will get thy latest beta update.
Beta software is test software and is not for everyone. Many don't want to risk test software.
Also, many who did join do so purely to get the latest software with no intention of feeding back issues etc. Others signed up and then didn't install, selfishly, meaning others who wanted to join for the right reasons, couldn't.
I am not employed by Samsung nor do I receive any remuneration as a Samsung Members Star.
My device is an S25 Ultra.