That wont help anything. Then you are just force to use Android, iOS, or Sailfish. It need to be a platform agnostic thing, else you're just hitching the fulcrum of civil society on private company.
Exactly. The app is only inclusive if it is accessible over a standard protocol (Web) without "attestation", so that it works for any platform. If I release a GNU/Linux distribution tomorrow, I should be able to use the app on it with only some work on my part.
I don't disagree, but the eu needs their own mobile OS alternative in general so if they absolutely need to rely on a private company, it isn't an american one
This doesn't follow. Why is public infrastructure no longer a possibility as soon as computers get involved? We aren't talking about cutting edge innovation here anymore, mobile phones are boring standard devices.