Many have been waiting for this option forever: the free choice of browser and mail app.
Source: The Verge
Gone are the days when all links were automatically opened in Safari and emails in the Mail App. Finally you can tell the system which browser and which email program you really want to use. Apple can be quoted with these words:
Set a default web browser and email app that launch when you click a link or want to compose a new mail message.
This is practical because there are very good alternatives to Apple’s standard dpps. For example, we can recommend Brave as iOS browser or DuckDuckGo, if you place great value on data security. We think this development is excellent, as it gives the user more freedom.