Do you use MFA? How about meetings (zoom/teams)? What about MS Office or Google Apps? Is the new email client up to snuff? All of these are much better as apps.
Users do not want to browse the web on mobile for all their activities, when Apps are generally faster, more secure, and has all their prefs recorded EVEN if a webapp is functionally equivalent (and most are only 70-90% equivalent)
So the new entrant has to curry favor with all these large software vendors (some of whom are now competitors) and offer something for some key uses of a smartphone.
You're right that apps can be better, but phone apps seem to always miss functionality compared to desktop web versions of the same thing. Even phone web version of Google doesn't have functional parity with desktop web Google. The phone app for Google is even worse.
Users do not want to browse the web on mobile for all their activities, when Apps are generally faster, more secure, and has all their prefs recorded EVEN if a webapp is functionally equivalent (and most are only 70-90% equivalent)
So the new entrant has to curry favor with all these large software vendors (some of whom are now competitors) and offer something for some key uses of a smartphone.