I daily drive an immutable Fedora spin and if I wanted to install Tailscale I would most likely add it to the base image via `rpm-ostree` instead of trying to reach for Flatpak - not because i'm aware of the issues but because it makes more sense to me to add a more system-wide networking layer to the base image. That being said there are many apps that are not packaged as Flatpaks that I end up adding to the base layer out of necessity which I would have liked to use as Flatpaks.