but if games didn’t require expensive (to own and operate) graphics cards

They don’t, if you buy games that came out 5+ years ago. This doesn’t contradict your point, but it can mitigate it somewhat.

A port is a slot for ships. Really big ships requires really big slots. The biggest modern ships are over 500 meters long. And dry docks require you to float the ship in, then seal it in and be able to drain the water out - given that those ships are ~50m wide, you’re talking about a huge construction project just to serve one ship at any given time. Turnaround for ships can be hours or days, so you might want multiple bays.

It might well be cheaper, to just have a small ship with a crane or something. Then you don’t need to build a 500mx50m swimming pool. In imperial, that’s 20 olympic swimming pools.

What happens in a society when EV reach 90-95% market share? What happen when the last petrol station goes bust?

The same thing as when cars were first invented, before petrol stations existed: you buy fuel in cans from stores. They used to buy petrol from chemists in the 1900s, but I imagine that today/in future they’d be sold at hardware stores or ordered online.

I’m somewhat doubtful petrol stations will all go bust though; long-haul trucking really favors petrol/diesel, and by their very nature of having a long range, they don’t need the petrol stations to be that frequent. Especially since the infrastructure is already built, it just needs to be maintained.

Also, obligatory reminder that electric cars are not the solution: fixing car-centric cities so they’re more walkable and have decent train systems is the solution.

"In the future, we’re going to need green fuels because you can’t electrify a large ship or plane — you have to use a high-energy-density, low-carbon-footprint, low-cost liquid fuel,”

Large ships are perfectly capable of being battery-powered. In fact, battery cargo ships might well be cheaper than oil-based ships: https://austinvernon.site/blog/batteryships.html