New stalker player, starting from Shadow of Chernobyl

Hey everyone, it was a big thing in my childhood constantly talked about by my peers to play Stalker but I somehow never got to try it out. Recently, I bought all 3 old games and decided to play them all in order. Once that is done, I want to get some good hardware to be able to play Stalker 2 because right now I don’t think my 4050 6gb vram laptop will be able to handle it.

My question is, why and what for should I use mods? I already watched some introductory videos to Stalker mods and got the idea that for the vanilla experience I should only install quality of life improvement mods. But even then, I’ve been playing Shadow of Chernobyl for 3-4 hours without any mods and didn’t experience any discomfort while playing the game. The only bad thing that happened was forgetting to save but I learned on my mistakes very quick.