I don't sync anywhere because I don't use the Apple keychain for my passwords. No idea if there is a solution for Android but the original claim was syncing between your devices was only possible if you stayed strictly with the Apple ecosystem. This is not accurate since you can sync to Windows even if you can't sync to Android.
However the Windows sync is only possible due to Apple providing an app for use in Windows which suggests its still within the Apple ecosystem. Apple could on a whim decide to discontinue their app for Windows.