No Microsoft fanboy, quite the contrary. But ended up installing Office 365 for my SOs business (~ 30 people) last year. And I'm properly impressed, by the amount of progress they do. It is a solid offering for very little money.

Yes something like Teams (Slack Clone) might be feel a bit betaish. But they are starting to add features such as recording of meeting, automatic transcribing and inline message translation.

I really think they are going to be hard to beat in the future.