Hi, I was sent here by Apple developer account, it seems here is the only option for me, so your help is very much appreciated!
Basically we are building a chromium based browser on iOS, we applied the "com.apple.developer.web-browser" entitlement, and it shows up in our identifier, profile etc.
The app is signed with the new entitlement and published to the app store. However it is not listed as an option for default browser, doesn't matter which device I tried.
I did verified that the Info.plist contains http/https urlschemes as required. In fact a few of us checked all available documents multiple times and still couldn't see why.