I was trying to figure out how to say what you said so I'll just piggy back. I agree that moving from proprietary to foss is definitely one aspect of the "withering away of the state". Engels didn't explicitly write about software for obvious reasons but yeah lol.
I think, and this is probably preaching to the choir, but one thing that we can keep doing is just supporting foss and try to get more people to use and contribute. Regardless of if the revolution were to happen tomorrow, we've definitely seen a big uptick in open source being used over the last 20-30 years.
I've seen people bring up that Lemmy/Mast/kbin are open source and my thoughts is always "as it should be". We are living through what I think might be a software revolution as more people get fed up with data harvesting and proprietary services. Will this era last? Who knows but I hope it does.
Funny enough, Linux and foss were what actually started my radicalization to the left. Back when I was using Ubuntu 9.10 I just kept asking why this wasn't this the norm? I mean Linux growing pains baggage aside that is.
The US has basically been some flavor of fascist since at least the end of the second world war.