Every app shipping its own Chromium isn't currently forbidden, as I understand it. They're just not allowed to use their own engines for webviews.
Technically you can even write your own webview, but you can't make it the default, nor will it be able to JIT-compile JS, since that requires an entitlement that Apple never grants. Having no JIT is murder on both performance and battery life.
https://www.macobserver.com/news/15-months-later-iphone-user...
Technically you can even write your own webview, but you can't make it the default, nor will it be able to JIT-compile JS, since that requires an entitlement that Apple never grants. Having no JIT is murder on both performance and battery life.