The installing animations and installation time was quite big compared to other security patches. Looking forward to finding out new stuff regarding the uodate.
As per the article India already got the update even some utube videos area available .most of them are not in english.they says they received .means it's not beta
But Samsung themself hasn't yet released the officla one ui 4. I think it's just the beta version. The one ui 4.0 beta was released in India on Oct 6th 2021.