do you have anything to back this up other than a fuzzy claim of authority? so far when I see people say things like this they're always talking about a handful of since fixed vulnerabilities early on in the project
Every time I update my flatpak apps I get a warning about deprecated libraries. I don't think flatpak is the issue but rather apps being able to not update really old libraries that could have security patches available. Does anyone know of a way to force these old libraries to update?
On Flatpak? Probably not. You update those libraries, even manually, and things will most probably break.
One of the many reasons I don't like Flatpak. You really don't have any control over how these packages are delivered. What the package maintainer did, that is it. But there's a new version. Nope, not if the package maintainer doesn't update.