I have really mixed feelings about this. From an open source and general fairness perspective, I would really like to have a true Firefox on iOS but I'm also cognizant of the fact that iOS' browser restriction is basically the only reason why “web” is not a synonym for “whatever the Google Chrome team chooses to ship”.
It feels like this would be best if paired with some regulatory pressure banning cross-promotion of Chrome on Google properties and requiring Google to actually do QA rather than accidentally breaking YouTube, Gmail, Google Cloud, etc. for users other browsers. For all of the “Safari is the new IE6” memes posted, I have far more frequently encountered cases where a Google web application is doing something which only works in Chrome but there is no technical why it could not work just as well in any other modern browser engine.
It feels like this would be best if paired with some regulatory pressure banning cross-promotion of Chrome on Google properties and requiring Google to actually do QA rather than accidentally breaking YouTube, Gmail, Google Cloud, etc. for users other browsers. For all of the “Safari is the new IE6” memes posted, I have far more frequently encountered cases where a Google web application is doing something which only works in Chrome but there is no technical why it could not work just as well in any other modern browser engine.