I’ve been using WinDirStat for many years, many PC systems. It’s helped me determine what’s eating my storage (okay, where I’ve filled up the drive).
It’s only for Windows and totally free!
Here’s a screenshot. I’m not surprised (Call of Duty takes a TON of storage!).
You can just click on a color to see what those blocks are. They’re arranged very intuitively. You can right click the folder and delete it there or have an explorer Window open in exactly that address.