I don't think Harry Maguire would have been called up to the England national team if he was overrated. That's why it might be a bit harsh to say it's exaggerated. He definitely has talent and it wouldn't be right to claim otherwise. However, he is very error-prone and this causes big problems in the teams he plays for.
Harry Maguire was once the auto choice of England national team and Manchester United there was no match where England or Manchester United announced without him but recently due to his performances and other factors he is not getting a place in the regular eleven. Manchester United tried a lot to sell this English defender this season but no club showed interest in taking this defender due to which Manchester United was forced to keep him in the team. Harry Maguire captained Manchester United but his poor performances last season led to him being dropped. He is still being given a chance in some matches, if he is not able to use that opportunity, then this English defender may be dropped from the team.
Harry Maguire has shown average potential at Manchester United, leading Erik Ten Hag to not grant him full playing time. However, according to rumors I've heard, there are several clubs interested in signing him, knowing his uncertain position at Manchester United.
One of the clubs interested in acquiring him is AC Milan. Whether this rumor is true or not, AC Milan already has six center-backs, so even if they were to recruit Maguire, he might not necessarily become a regular starter given the current strength of AC Milan's squad. Perhaps AC Milan intends to recruit him to assess Maguire's potential in Serie A and provide him with an opportunity to develop his career in another European league. Staying at Manchester United It seems difficult for Harry Maguire to perform optimally because the club management wants to immediately sell this player to another club.