I think if EVERY tool you use at work is in the Office suite, teams is just better. If you have any other tools like one off SaaS or devTools, Muddy could be a fit.
I fear you're right. As a remote worker, I feel that more touchpoints and areas of collaboration can really nurture a better culture. Muddy feels like a good step in that direction. While my day-to-day experience with Office365 isn't horrible, it's this kind of innovation that I want to support.