Syncing OneDrive app in PC and Android

I have installed OneDrive App in my both PC Windows and Android, and they do work independently.

I looked up instructions on Internet for syncing the above two.

The best website I found was https://support.microsoft.com/en-us/office/sync-the-files-on-your-computer-with-your-mobile-device-b2f43640-e945-4e8a-85fb-1cffc90c8598

But I could not at all figure out from the above website how to sync OneDrive App in my PC Windows and Android. I shall much appreciate clear instructions.

Thank you.