Come on man, that's an edge case.
That's on a mac and almost nobody uses outlook on mac. They are using 365 and the built in mail client.
There are still many many in Mac riddled environments that use outlook installed local. The functionality for is integration with a web based is not workable.
Most don’t use macmail because they “muh always used outlook”
But yes they should kick outlook to the curb. O365 also.
169% agree there. Everyone is about done with Microsoft and it's bullshit.