It is way easier than this to game on PC these days than this person is talking about.
Buy a gaming computer that has good recent ratings across a few sites like Google, Amazon, Tom’s hardware.
Thats its! Lower the graphics settings in the game if you are experiencing issues.
Thats it! Play most all games for the next 5 years before worrying about upgrading.
Then when you do upgrade components be fascinated about how easy it is with a tiny bit of googling how to build a computer/upgrade hardware.
Thats it!
No it is not. Computer gaming is easy peasy these days see my above comment.