That may not be the intent, but it seems like it would still apply. Many of the “app stores” on Linux are just front ends for the package manager in some way.
I assume the people behind this don’t know things like apt or dnf exist, so it likely wasn’t considered.
There are a large number of things that the people behind this don't know about. That doesn't mean that they screwed up. It means that the law does not apply to those things.
I assume the people behind this don’t know things like apt or dnf exist, so it likely wasn’t considered.