it sounds like you haven't done any research on parts/builds, which is fine, but doing your own research on every component is vital if you're trying to save money (which may not even be a thing anymore these days) but still end up with something worthwhile, because yes, everyone is going to give you wildly different advice

so here's mine-- just buy a prebuilt. might be more expensive than the sum of its parts, but you save on time doing the research on parts and prices, plus it might come with a warranty. look up the recommended specs on your games, find a PC in a box that exceeds those, and you're done

also OS is a thing to consider, but that's an entirely different convo