An important point that hasn’t been raised yet is that capitalism is not optional if you live in a capitalist country. If you want to eat, you need money to buy food – at least this holds for the large majority of people. However, the software or platforms that one uses are optional. Sure, they might be important to participate in, but you still don’t starve if you don’t use them.
In my opinion, this breaks the whole analogy.
Still, I think it was an interesting idea to consider.
As so many of those linux audio lists, this is quite outdated unfortunately. For example, JaMin is abandoned since years and DrumGizmo also runs under Windows since a very long time but is marked as “N” here.
Here is a video by unfa, probably the most active/popular linux audio youtuber, where he talks about a lot of linux audio tools.