I know some people are worried about Iron Lung and Mark because of the strike, but you don't need to be. Mark is a union member, doing a union movie, he's not crossing the picket line.
To cross the picket line would mean working with any of the four companies the union is striking against. Mark's movie has no affiliation with Disney, Netflix, Amazon, or Warner Bros. The cast is safe, he's safe, the movie is safe.
Unless, for any odd reason, he pays any of these companies, or gets his movie tangled up in them, then he would be in trouble, but he is not going to do that.
With post production almost done, he's fine, he is out of the bigger struggles, and he has no reason to interact with any of those companies. Most of those companies are so big because they fund people's ideas and projects so that they can actually be made rather than struggling with self funding. Mark and his team never needed them because he's funding the movie, and doing the work to get advertising and marketing finalized, and he's not doing any of that through those companies.
He owns the movie, he paid for the movie, he wrote the movie script, he's the main actor in the movie. Even when he pays for scheduling and buying spots in theaters, he still won't be working with the big four, he'll be competing against them as an independent movie.
He's pro union, he's fine. It's how he did in space, and maybe even heist. At the moment, he's basically functioning as a small creative company, and one that's probably better for his workers, and paying them better than those who are marching with their picket signs. Crossing the line would be actually having to cross those people to get to the big four, and he's not involved with Hollywood, he isn't in that world, he sits beside it.
Now the edge of sleep, that might be a different story. I don't think Mark is allowed to talk about the show already since he hasn't talked about it much so far. He did leak some on stream once, and was kinda stressed about it, but it turned out alright. He doesn't talk about the show at all so he's probably under contract. I don't know how the strike will affect it since it's probably going on streaming (Netflix), and if it's already ready to go and waiting on a time slot then Mark will have to be unaffiliated with the rest of the project. He won't be able to talk about it at all, no promotion of it. If it changes platforms to something else like, HBO, Hulu, or Peacock then maybe it'll be fine (unless those are under any of the four, and I don't honestly know if they are.)