it is waaaay to soon to compare burrow to any vet but brady was in the league for 7 years before he had a statistical season better than what burrow just had.
This reminds me of when Carson Palmer was with Cinci. Similar throwing style, maybe little less mobility. Palmer was really good too before that knee injury against the Steelers in the playoffs - he never really got back to that high level of play.
They're line is not much better than ours. I'm sure the bengals will be competing with us in the offseason to use FA to shore up their OL.