This possibility of corporations running everything is exactly why we have FOSS licenses. Despite what this article says, many FOSS projects are doing fine and there are a lot of people who do work on making FOSS computing viable.
The practical solution is not adopt communism, but to use FOSS software and not accept any gaps in the FOSS ecosystem.
> I feel increasingly worried about future iterations on similar ideas like the metaverse/AR which seems to be gearing up to be a fight between Facebook and Apple with Unity, Epic and Roblox on the side. I think we’re going to end up with something pretty closed and dystopian.
I fail to see how this lawsuit you speak of is relevant to FOSS. Are you aware of Godot engine, an increasingly viable unity alternative? The important advantage of Godot engine over Unity is that the incentives of the developers are more aligned with the incentives of the users. Unity subjects its users to a terribly complicated EULA that many don't fully understand. It restricts the amount of copies you can install, how much money you can make, what you can use it for and so on. Godot doesn't have any of that, and they're well-funded.
Godot engine is an example of a FOSS project that exists simply because the open source development model is more efficient than closed source. Companies realized that a FOSS game engine would be in their best interests and therefore they decided to fund development. This goes to show that FOSS is not totally at odds with capitalism. Sure, the corporation funding Godot could try to take the project in a bad direction. If that happens, the people who care about FOSS rather than "Free software as cheap labor" could fork it.