I've got an older system by today's standards that still runs the game well by my standards.
expensive CPU with an ultra-cheap mainboard, RAM without specified speedgrade, questionable PSU, SSD seem OK but too small, old 2060 (one should not start below 2060S due to extra 2GB VRAM)
watching the videos... still very nervous about building oneBut this may be the one thing I actually try
I've done it and enjoyed the learning involved. I'm now in the process of putting together new builds for myself and for my wife using some hand me down parts since she has less demanding needs for her desktop. If you have questions you can use the blogs on their website, and of course the forum here.