issue with ios is that there is never any control over who handles what links. Apps can register custom protocols, but for common protocols that have an apple default (https, http, mailto being the main ones) you are stuck with what they decide. No option to even install an alternate such as Chrome or Gmail, and be prompted. And similarly, even though it's not a protocol, but more like a filetype, Apple News hijacks feed URLs and there's nothing anyone but Apple can do to change that.