You don't want a drop-in replacement for each service, you want one for the entire system.
Microsofts advantage is ActiveDirectory integration. Centrally managed users and machines, every user, every application, every service authentications through the AD.
Organizations opt for Teams all the time, because it's part of the package and fully integrated. There's no reason they couldn't pick something else, but why deal with it when Teams just work (sort of).
Microsofts advantage is ActiveDirectory integration. Centrally managed users and machines, every user, every application, every service authentications through the AD.
Organizations opt for Teams all the time, because it's part of the package and fully integrated. There's no reason they couldn't pick something else, but why deal with it when Teams just work (sort of).