There's one thing that makes me to turn to other browsers.
Opening an FTP folder with login information
In the older Internet Explorer, I'll see the users directory listing.
In Edge devel, it logins to the anonymous user account.
Next step is also important in this use case:
When the file list is displayed;
Right click a file, then "Copy shortcut" so that includes the login information
I know URLs with embedded credentials have been slowly fazed out with many browsers, and usually require you to log in again for some, because of security issues.
It would be cool to get something like this to work in IE mode for sure.
We appreciate your feedback.