> Others can just run a distro for people who believe in open source software.
What about Flatpak is contrary to open source software as you seem imply? Flatpak itself is free software, so is most of the software packaged with it. There are quite a few good reasons to use Flatpak, especially for developers who want to make their software available on different distributions without wanting to worry about packaging separately themselves. There are valid criticisms of it, but being somehow against open source software or being somehow related to Microsoft is not one of them.
What about Flatpak is contrary to open source software as you seem imply? Flatpak itself is free software, so is most of the software packaged with it. There are quite a few good reasons to use Flatpak, especially for developers who want to make their software available on different distributions without wanting to worry about packaging separately themselves. There are valid criticisms of it, but being somehow against open source software or being somehow related to Microsoft is not one of them.