I’m wondering if a package manager like flatpak comes with any drawback or negatives. Since it just works on basically any distro. Why isn’t this just the default? It seems very convenient.
The worst part of flatpaks is that they don't get to see the actual path of files that they open. Instead, they get a /var/run/1000/blah proxy. The proxy is forgotten after you reboot, so any flatpak that memorized that path is holding a bunch of dead links.