I have never played fallout. Where do I start

I've always been a bit of a frugal gamer, and mostly spend my time in sandbox type games. I'm not huge on FPS type games, but i have spent a fair share of time in time in them, from the n64 goldeneye, through halo, and a bit of COD before the modern warfare tangent, and can enjoy them if they have a story, and compelling adventure. Having never played anything fallout, and knowing basically nothing about it, i just watched the first episode of the new show and im wondering if i should start diving into the fallout games, since the older ones are super cheap. That being said, the first fallout came out about half my life ago, so i wonder if it still holds up. if i should start there, or if the story isnt linear throughout the series. This comes from someone who waited until 2019 to buy portal and loved it.