IIRC, the showrunners are same as did GOT for HBO/Max, not just . Even though I tired of GOT, it was a well produced show that kept excitement high and was always fun to look at.
If not familiar with them, the Fallout franchise is among the most successful franchises in gaming. I was never a fan of shooters, but watching my brother-in-law play F3 many years ago I decided to give it a shot. The concept really throws the post-apocalyptic universe on its head with a lot of tongue-in-cheek humor and a retro-futuristic vibe heavily rooted in a '50-60's bubblegum vibe. The Soundtrack is all old music like Bing Crosby and Andrew Sisters which lends a strong twist to the overall feel since a lot of it is from the '40's. Wrap that in a near-modern-futuristic version of the military component with Airships and Mechanized Body Armor, flying robots (that also had domestic housekeeper or medical versions) and unique weaponry (like a Junk Cannon which can turn any item of junk one finds in the world, like a teddy bear, into a lethal projectile).
Needless to say, shenanigans ensue... to the extent that most gamers are eagerly awaiting the next version of the game which is probably still another 2-3yrs out!