Manchester United is still owned by the Glazers pending when the agreement to sell the to the new bidder is confirmed.
So it simply means that Manchester United will remain to continue with whatever transfer strategy and budget that's been put in place by the Glazers until the club is finally sold to another individual or group. United current sqaud for a truth needs to strengthened by signing more world class players which I think will be done in this summer transfer window regardless of who owns the club
Whoever owns Manchester United one thing is certain that they really need significant additions to the squad. At least this is needed if Erik ten Hag is planning bigger for the club for the near future. This season they showed how capable they can be by defeating even the league champion in Old Trafford. They were really impressive in home matches against top clubs in the league.
But this squad isn't still quite enough to compete harder for the Premier League and Champions League titles. Maybe you can give the Arsenal example but it isn't a thing we see very often. They have a really young squad so they also need some serious additions to keep consistency.
As a result Manchester United need to be really careful about their expenditures as well from now on. Otherwise they might find themselves spending a huge sum of money on an average player such as Maguire.