While it has been asked before - there's been a significant change in Stack Overflow for Teams. It's still 'formally' hosted on the Stack Overflow website, but you can access your teams from nearly anywhere on the network.
In a conversation with Teresa Dietrich on SE chat she mentioned:
Well, displaying Teams across the network is my first step to trying to make it feel like an ecosystem
MSE is for questions about the network as a whole. While I don't advocate for a mass move of questions across from MSO (it would be a monumental mess) or making questions on teams off-topic there (It's their decision) - but at this point, should we consider SO for Teams a network-wide product, and should it be on-topic for MSE?
Naturally, we'd need staff support to pick up and direct these questions appropriately but it seems inline with what seems to be the company's viewpoint.