I you want to get the summary about browser choice on iOS, Stuart Langridge has got you covered:
Last week I sat down with the UK Competition and Markets Authority, the regulator, to talk about browser choice on Apple devices, and whether the claims that limiting choice is good for security and privacy actually hold up.
Talking to the Competition and Markets Authority about Apple (Slides) →
Talking to the Competition and Markets Authority about Apple (Blogpost) →