(And no one noticed for the first few hours)
Everyone hates Teams so much they only seem to use it as absolute last resort. I see about 10 total messages a day, if that. So yeah, it took us a long time to realize it was even down.
With Teams it just feels cold and lonely, to be honest.
I'd say if everyone knew everything, and just wanted to code all day, it probably would have helped work as there is less random chatter too. But I'm not sure that's ever realistic for a company.
It sort of was, they chose Teams. I say this as someone who uses Teams and could probably get us moving away from it but the inertia is real.