I have used S10+ and Note 10+ in the past. Every time i started any of them phone, it always displayed "Samsung Galaxy Note 10+" as a start screen, even with one UI 3.1. Even S20 Ultra would display something similar. This time round with my S21 Ultra 5G, the type of phone is NOT mentioned, rather just "Samsung Galaxy". Do i really have a genuine Samsung product? Or was the display screen changed?
Google demanded that manufacturers add, "Powered by Android", to their boot screens.
See around 2' 24" in on this video...