Oh yeah, that did happen (it was a completely separate protocol iirc, they just used the same name). Even with a local app it just redirects to Teams (I'm too lazy to uninstall it at the office so like twice a year or starts with Windows logon).
It's funny how MS keeps buying competitors from the same market & they end up with line 5 business social media apps, several chat services, etc.
I really think these companies just get so big they don’t know what to fucking do with themselves anymore so board members just push psychotic movement towards anything remotely shiny.