Flathub aims to be the place to get and distribute apps for Linux. It is powered by Flatpak which allows Flathub apps to run on almost any Linux distribution.
How does it stack up against traditional package management and others like AUR and Nix?
I love flatpaks and flathub. They're amazing for GUI apps, though there are still a couple of wrinkles that needs to be ironed out.
I would really love if it was better with regards to cli apps and developer tooling though. As someone that uses a lot of TUI apps that seriously limit how much I can use flatpak.