That build uses a 13 year old CPU from AliExpress, there's no accounting for taste but I think most entry level builds are aiming a little higher than that. Some newer games won't even try to run on a CPU of that vintage since it doesn't have AVX2 support.

It was released in 2016 and does support AVX2. In general what matters when building a decent rig is aiming to balance performance to optimize against bottle necks. He demonstrated the system in various modern games, for instance running Delta Force at 4k/120FPS. And the CPU was scarcely getting touched - running at around 20%.

You can spend a ton of money on a bleeding edge CPU and see 0 performance gain in almost all cases, because basically no modern games are CPU limited, or even remotely close to it, so you're sitting there with your overpriced CPU basically idling.

-----

I think many people are out of the loop on PC costs and performance. The days where you needed some $1000+ bleeding edge rig to even begin to play the latest stuff are long gone. Since this thread is on consoles - an approximate PS5 equivalent video card is the RX 6700 XT which is like $200-$300, and that is, by far, the biggest expense.