Or more recently Darwin. I'm not saying Darwin has the same potential but everyone was after him this past summer.
Yeah, as good as Bellingham is, he's not in the same bracket as players like Mbappe, Neymar, Messi, Ronaldo. Not yet anyway. Not even the same bracket as Salah, Haaland, Mane, etc. Not yet.
He's famous, but not a worldwide household name yet. Every scout in the world knows him and everyone Britain sure. He's England's most promising young player. He's not Mbappe yet though.
Mbappe himself was more than about talent it was about a status symbol. The Mbappe purchase was about promoting Qatar on the international stage.
Unless England win the world cup and Bellingham puts three in against Brazil in the final he's not going to be the same sort of status symbol buy that Mbappe was. (Even if he was, is, or will be better). Mbappe was never about the football.
He's closer to (but more competitive) to the Darwin buy of the summer, or Virgil than he is Mbappe.