Some ides

First of Everything you should use this
https://www.microsoft.com/store/productId/9NBLGGH4TXVB

To convert to Chrome extention to Edge and upload it to Microsoft Store as well

Secound i would like to see a cloud store of adressbook not just sync it to Google Drive, i have quit every singel Google Service so a cloud would be alot bettre that store it into a storages spaces, get dubbel notfication into Windows 10 PC sometimes is feels like spam.

but also add support for Microsoft login as well.