The anti-trust reactions may undo a lot of that, that already hasn't been undone. I know too many orgs that hate Teams and just want to stick to slack, etc.

Personally, I don't really love any of them... I miss the simpler UI/UX of Instant Messenger apps or Trillian/Pidgin etc. Aside, just looked at Trillian and looks like they did a nice spin on their business model.