How do I access and make changes to my family sharing account without having an apple device?

What is Family Sharing? - hhttps://support.apple.com/HT201060 --> You can use Family Sharing on your iPhone, iPad, or iPod touch with iOS 8 or later, your Mac with OS X Yosemite or later and iTunes 12, or your PC with iCloud for Windows.

and

Use Family Sharing with Apple Music on Android https://support.apple.com/HT212154