Depending what you want, you can do this very simply:. Create an SMB network share on the PC. It can be password protected or not. Doesn’t matter what OS, really (Windows, OSX, Linux). Then, on your Android phone, use an app like Solid Explorer or any other network capable file manager app that you like. Add the share to your file explorer app. After that, you can copy files just like the network share is a USB flash drive or SD card, or any other drive. It is taking advantage of stuff already built into your PC OS.
Some jerk company (like Google) cannot suddenly discontinue my entire reader with all my feeds, because its mine, on my server. But because it’s a web app, I can use it from any device, unlike a local app. After Google killed reader, That was just too annoying. Self hosted since.