Keep in mind that the reason this happens isn't because of "faulty AI automated systems": the reason this happens is because these companies choose to save pennies by not offering proper support channels and recourse. Those saved pennies make the difference between a 2-hour outage and literally bankrupting you for no reason at all.
Also, politicians never go after companies for biased reasons and we can count on the government with more power not to abuse it.
Just because there was no AT&T style divestiture at the end, doesn't mean there were no positive externalities.
I don't know about the specifics of what is legally required vs what the Microsoft legal team decided to do to avoid further scrutiny. But the fact is that there's a lot of docs that were published in the aftermath of that ruling:
https://learn.microsoft.com/en-us/openspecs/protocols/ms-pro...
https://learn.microsoft.com/en-us/openspecs/data_portability...
The actual rendering engine was left to Windows (and to anyone who was using it, like AOL), the shell was left to IE to continue wrapping around it, and a few more things.
They weren't broken up but they were anti-competitive asswipes.