To see your favorites and reading list on all your Windows PCs and phones, you need to sign in with the same Microsoft account on all these devices. Once you do, wait a bit for the content to sync for the first time. If it still doesn’t sync, make sure syncing is turned on in Windows Settings as well as in Microsoft Edge on your PC.
To turn on syncing in Windows Settings:
Select the Start button and select Settings .
Select Accounts > Sync your settings and turn on Sync settings.
To turn on syncing in Microsoft Edge on your PC:
Select More > Settings.
Turn on Sync.