Is My First PC Build Looking Good?

I'm putting together my first PC build and would love some feedback on my component choices. Here's the link to my build: [https://pcpartpicker.com/list/CrsHsp]. I've heard that the Intel i5-8400F might not perform as well as the Ryzen 5 3600 in some games, but I'm hoping that the AM5 5200MHz RAM will help balance things out. What do you guys think? Also, is the CPU cooler I've picked decent? I don't want it to be too loud, and I'm on a tight budget—can I expect a big difference between a $60 cooler compared to a $20 one? Lastly, I had my eye on a case with a glass front panel, but I've read conflicting info about airflow. Is three 140mm fans better than three 120mm fans? Do you think I need any additional cables or fan splitters?