I'm planning on finally getting a Gaming PC but I mainly have two questions

After having a good talk with a few folks, I've decided to buy a gaming PC and build it myself. I have everything I need, including all of the necessary equipment and accessories. I don't want to buy anything from NVIDIA because of some of its controversial decisions, its drivers' poor performance on Linux, and its high price. I'm going full red (AMD). Keep in mind that I will not be using Windows on this PC at all and will be running Pop OS on it as my primary operating system. I am also buying all the parts from Bestbuy. My budget is not to go completely over $2000

Two questions

1. Will everything work properly with all of the PC accessories I'm getting, and is there anything I should replace? (not including the CPU or GPU)
2. Do you think it will be enough with three fans, or do I need five for extra cooling?

Everything is linked here: https://pcpartpicker.com/user/Crafted_104/saved/XcZCrH

The current price for everything is $1716.78