Microsoft knows this how to 'avoid getting broken up but still continue our monopoly game' better than anyone else after escaping getting broken up in US v Microsoft Corp and other huge acquisitions.
There needs to be a very strong case this time to go after Microsoft to argue for a break up of their business. Whoever is to bring the case (either the DOJ or the FTC), would have to go after Meta and Amazon first before targeting Microsoft.
It won't be easy, but Microsoft has been able to avoid scrutiny for years.