When it avoids a chrome (and thus google) monopoly: yes. And don’t talk to me about Firefox engine. Its market share is negligible and the whole thing only even still exists because google allows it.
The App Store is the walled garden that doesn't allow anyone else to ship a browser engine, except in certain markets where they have been forced by law to create a "Web Browser Engine Entitlement" that non-WebKit browsers can use with super special permission from Apple.
