It’s an email service, the app isn’t really needed.
You are only left with web access, which is not really practical.
That is the saddest thing to come from Apples insatiable greed... The original iPhone was not going to have apps at all, it was all going to be web pages.
There is nothing stopping the browser from being the only app a device needs, nothing other than greed and authoritarian control that is...
Having apps and a web browser really is the best of both worlds so I don’t quite understand your complaint.
as others have said they have gutted browser support and compatibility for advanced features in order to push people to Custom Apps where they can capture 30% of all revenue, instead of browser where they can capture 0%