Even though I have the note 10, I'm not getting the beta for the android 10 update. If any of you can tell me why it will be greatly appreciated!!
I believe it was a limited beta. I too purchased a Note 10+ with the hopes of trying the beta but was unable to get it.
The beta is made available in batches to unlocked devices only right now. The next round might end up letting you in. You'll need to check the notifications section or your offer banners here.