Our goal for sync is to ensure that users have a consistent browsing experience when they choose to roam their favourites, passwords, history and other data across their devices.
When you sign in with your Microsoft account on Microsoft Edge Insider Channels, you’ll get a dialogue asking for consent to enable sync. Once you give the consent, your favourites should start syncing. Note that you can customise the sync behaviour from the sync settings page.
PC Sync settings
Currently, only favourites are available for sync.