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'm a bit "eh" on flatpak. The only benefit I see is that it's sometimes more up-to-date than what I can get from an LTS package repository. As a heavy CLI user they force me to find and click icons which is irritating (yeah - I know about flatpak run something.I.always.forget but that's even worse somehow).
I've hit occasional issues with applications being too locked-down. Like with Darktable only being able to see things in $HOME/Pictures. But I keep my photography work in a different location so it can't see it. I had to jump through some odd hoops to fix that. Not a problem of flatpak itself per se but something you can expect when dealing with package makers.
I fall back on flatpak if the version available through the standard package manager is too out-of-date for my liking. Other than that I can't be bothered.
EDIT: Okay - for people who think they're being "helpful" by telling me that "aliases are a thing" just stop. I'm not going to workaround a broken system. I'm going to use another one that isn't broken (or less broken).
If you're going to use flatpak from the command line you're definitely going to need to start aliasing those flatpak run commands. It's still annoying, but at least that way it's only annoying once.
Well okay. I agree that it's a flaw in Flatpak, but if you think adding a single line to your .bashrc is some kind of unbearable burden that you shouldn't have to endure and you're willing to make your own experience far worse just to avoid it, then I think you're being a bit silly. I mean, be as silly as you want. Don't let me tell you what to do. You are being silly though.
if you think adding a single line to your .bashrc is some kind of unbearable burden that you shouldn’t have to endure and you’re willing to make your own experience far worse just to avoid it, then I think you’re being a bit silly.
I'm making my experience much better actually? Stop justifying flatpak's flaws because you like flatpak. It's flawed. Deal with it.
I don't even like flatpak very much, I'm not currently using it at all, and I already agreed it was flawed right at the very start of the quote you cut off there. I was just trying to be helpful. Sorry. Won't happen again. If you want to make things hard for yourself and no one else as a weird self-defeating protest then don't let me stop you. Don't pretend I didn't do the thing I just did and you had to edit out of the quote though. That's a real dick move, frankly.
You have the option to add the verified subset only, and you can always check permissions before starting an installed app, and it will not start before.
Do... Do you think I'm claiming snaps are better or something? I'm saying they're much easier to use and I don't give a shit about walled-garden BS. I don't want my laptop to be like my phone. I want to install an application and I want it to work. Flatpaks are fine - they just made a really stupid decision about how to run them from the CLI which is 90% of the time where I launch programs from.