Not really because Pogba was rarely ever played as a proper no 10 for us like Bruno was brought in for.
When we signed Bruno nobody thought ‘ah that’s Pogba replaced.’
If Pogba, our most creative midfielder leaves, then he absolutely needs replacing in this team.
Christ, some are happy to see him leave and not even bother attempting to replace him!
Here's the thing, if you let an important player go before you replace him, people will complain that you should have bedded someone in before letting them go. And if you do bed replacements in, then some people will claim that you never replaced the player because you didn't sign anyone
after they left. In my opinion we've replaced him and you're in the second camp.
That said replacements are rarely like-for-like. Yes, Pogba was never really played as a pure #10 in earnest, like Bruno is, but he was very often played as the most free of three midfielders. He has played mostly with two of Matic, Herrera or Fellaini behind him when played in CM. Those or McFred. He's not played that much in the base of a two-man midfield.
As such Bruno has taken his position. Now Bruno might be using his freedom to play higher up the pitch (or it might be an instruction, who knows) and instead of 4-3-3 we might be playing more 4-2-3-1, but regardless Pogba's position has gone to Bruno. It hasn't gone to Fred or McTominay, they have replaced Herrera/Matic/Fellaini not Pogba.
If we sign midfielders to play in the base of the midfield after Pogba leaves, that would technically be upgrading on McFred rather than replacing Pogba who doesn't need replacing any more. His position is already gone and now he's being shoehorned into positions that don't suit him (or us) given the formation we play.