GPO to support Edge Favorite Sync and Timeline for clients in on-premise domain
Since you made it impossible for us to allow users to sync their Edge Favorites and Timeline data via their Microsoft accounts (Timeline works for Azure-connected domains, but not on-premise domains), you are making our lives harder.
First, instead of allowing us to encourage users to use the Edge browser, this effectively forces us to tell them all to use Firefox, Opera, or Chrome so they can sync their bookmarks. I know the official Microsoft word is that admins requested blocking syncing with a Microsoft account as a security measure. I don't think many of us believe that. Aside from the fact that this doesn't help with security if users can do the same thing with any browser (and in fact reduces security, because to provide a reasonable experience for users we're effectively forced to allow them to install Chrome, instead of just telling them they have to use Edge which gets security updates through Windows Update), it's also missing the whole point of using Group Policy. If some admins want that, fine. I don't even care if it's the default, but please give us the ability to turn Microsoft-account syncing capability on for our users.
I think it's the same issue, but possible it's unrelated -- Timeline also won't sync for on-premise domain-connected clients. It does work for Azure-connected domains. Please include this with the Edge Favorite Sync.
Basically, anything that users could do if their systems were not on a domain, we should be able to let them do that via Group Policy on an on-premise domain.