I am not a computer Guru nor a tablet Guru but since I had a Gmail account before I purchased my Samsung tablet my experience is that if you use your emails with Gmail and Samsung being on the Android Google architecture you will have what you have in your Gmail contacts as I see in my Samsung contacts however I must add that's Samsung contacts list is a little bit less than in my Gmail contacts... bizarre!!!
🙂 I am commenting mkm question statement! It's very good and I totally agree I have never activated Bixby because it asks too many questions about me and then we know what that means for the company!? They gather the information and they sell it to their customers clients etc...( yes I forgot to add what Samsung will reply as all others it is for our own use so they can offer us better services...) we become the new guinea pigs of the new technology era!