This is not really related to what this author means as "good" at chess. But I found spending about 8 hours working through lessons and chess.com and Magnus Car

This is not really related to what this author means as "good" at chess. But I found spending about 8 hours working through lessons and chess.com and Magnus Carlsen's app (I preferred the chess.com one personally), and maybe another 8 hours playing online was about what I needed to have the occasional "good game". Relatively speaking. It was eye opening for me learning some basic strategies and tactics. Mostly controlling the center, a couple of openings, and techniques for checkmate. Too much beyond that and most players are doing a lot of memorization and pattern recognition. Which I don't really want to do, but I am super happy I learned the basics because now chess is fun and I understand it. I'd recommend taking lessons online if you want to learn chess. Skip many games.