Flatpak (flathub) is a universal app store. You can install pretty much any app from it, but you do need to be careful of what you install, as always.

Usually software centers have it enabled (supported) by default, so that you can install app from flatpak within the center.

There are other options of install source, like the distro’s own installer - you can think of them as another “app store”, one which is more restricted and more secure.

Thanks a lot! Bummer that it is primarily for media. I wish it had more publicity/popularity, is there any way I can help?

Reading the post, I found what I really want right now: a federated review platform. Too many times I want to look for a product, and has to look into a reddit thread to see a recommendation. There should be one, right? Where is it?

How did you manage to develop the application? Would have taken tons of time.