the metal gear timeline isnt even that complex, the games are set in a specific order and their time periods never even overlap. and if you play them in order of release you’ll get the full story with no spoilers. the only thing that makes it sound confusing is how much weird stuff happens
“some british fuck tries to control the whole world while some american fuck becomes an international terrorist to spite him and they both die like idiots when the american fuck’s clone messes all their shit up” there that’s the whole plot of metal gear