You would be best advised to speak with 3 to see if they'll comment on timeframes for letting Samsung release the update to you once they I assume have tested it for their branded phones.
Be ready for them saying they can't confirm a date however and don't let them tell you its Samsung that's not sent it out !
Daily Driver > Samsung Galaxy s²³ Ultra 512Gb in Phantom Black.
The advice I offer is my own and does not represent Samsung’s position.
I'm here to help. " This is the way. "
