I mean, one of the central goals of communism to abolish ownership of the means of production.
Software used to produce something of value is a resource that in a communist society should not be owned. The only way to achieve this is to let everything be opensource.
So communists clearly like the free software movement, whether inverse is true is a matter for debate.
Keep it up! I honestly don't know how you do it.
I recently tried debating politics online on a lemmy.world alt acc again but after someone just regurgitated nonsense they heard in their social media bubble I got so fed up I had to touch some gras.
I guess next time I'll just follow the hexbear aproach and post pigs shitting on their own balls. Doesn't win any argument, but feels kinda cathartic.