It had one @&_+ing job...
And they managed to instead product design something with 2 (3?) different chat models, limitations around every corner, an incomplete API for basic use cases (e.g. getting notified of @'s), and an embedded ability to build entire apps inside Teams.
I cannot trust any company with any modicum of success not to immediately exit into the hands of megacorps. I cannot hope that companies have any type of morality/"want to make the world better" anymore.