Couldn't it be possible to ask the user to allow certain directories or files? It might be kind of annoying but it would be safer.
Also, it could integrate with the open file dialog and only allow the application to access files selected by the user, and nothing else. That would be tough because the developer would have to integrate with flatpak APIs, and I don't think flatpak is big enough for developers to care. But that would be ideal since it's safe but also not annoying.
Also, it could integrate with the open file dialog and only allow the application to access files selected by the user, and nothing else. That would be tough because the developer would have to integrate with flatpak APIs, and I don't think flatpak is big enough for developers to care. But that would be ideal since it's safe but also not annoying.