recently I needed to go from one computer to replacement computer. And I couldn't use Microsoft account sync feature, for the replacement computer wasn't mine.
And I have a few Edge windows with hundreds of tabs open overall. I loved the feature "Add open pages to Favorites" -- I could continue browsing on the replacement computer where I left.
However, my Tab groupings with their names and Edge window names were gone. While the feature is already good, but maybe "Add open pages to Favorites" could be even better by also saving the tab group names and Edge window names into favorites.html?