I dont know who manages “who can maintain”, if its only a single person thats bad of course. Good point that should be addressed to the flathub people. There should always be administrative access to some form of elected bunch of people that can then merge PRs or make new people admins.

True about the EOL runtime error messages, I mean they are important but should be possible to mute per app, especially when its offline. This will then just consume more disk space, which is probably fine.