Not a messenger, obviously, but they've done the same thing with OneDrive as well. This seems to be some kind of in-house Microsoft antipattern.
Re:Google says iMessage is too powerful
by tatersolid on Saturday January 15, 2022 @03:30PM
(#29949942)
Not an anti-pattern. Keeping work and personal stuff intentionally separate is a good thing.
Same happened with Skype after it was bought by Microsoft, and I seem to recall this is relatively recent. There were (are?) two Skype clients - one for 'personal' (the original Skype) and another for 'enterprise' (rebranded Windows Live for Enterprise possibly?) and not compatible. Again, I recall trying to help confused Windows users figure out why the (incorrect) client wouldn't log-in with certain credentials.