While you are at it, convince Apple to allow Firefox on iOS, and decline to use WEI in Safari. Otherwise there's no way to avoid WEI on iPhone, and only one mainstream rendering engine free of this insidious malware. Many companies will shy away from it if it breaks mobile apps on the Apple platform.
Here's hoping that happens, but it still won't fix two things: Firefox is kinda weird and clumsy on mobile, and it'll still need attestation if that's implemented on key websites as a hard-barrier to usage. I'm now on Android (I alternate between the two, so next cycle will be Apple), and even as a highly technical type I don't sideload on there anyway, so I think few will sideload on iOS either.