Just upgraded my Samsung S9 (SM960F) to One UI 2.0 G960FXXU7DTA3 from One UI 1.0 G960FXXS7CSJ3 here in Indonesia.
S10+ users thinking be like, Is s9 is the latest handset from samsung. hahahaha..
The 10 beta is a train wreck and most bug submissions were closed without investigation. More importantly, there are no significant new features but new looks in Samsung's ever growing list of shovelware apps. Speaking of shovelware, you get new "DeX for PC" or "Link to Windows" adverts every time you plug in any USB device. A Smart Things button is in the shortcuts menu even if you don't have it installed. The Settings app is a disaster of new and hidden obsolete panels that can actually mess up the phone.
I downloaded it and everything is working smooth and fine. I installed it with Odin (the German version because Samsung Israel are very slow in OTA updates)
If I were you, I would think very very hard before installing android 10. At least do some digging in the samsung community forums. Vary many unhappy people. As S10 owner I regret instaling it very much. You will downgrade features, it will mess up your phone, notifications, more looses than gains.