Gee, if "many teams" want to spend their time migrating their unit-test framework and unit tests because their frontend framework hit version 18 I suppose that's their prerogative.

Not me to applaud Teams but it seems Slacks lunch is being eaten by people who are busy building things on the corpse of Skype, not churning through churn incarnate.

If Enzyme was at all popular (which it sounds like it was) I'm surprised no one from the community has taken over maintenance.