Defaulted back to the original Edge Browser which I too preferred.
That works for the manual download, but once you accept the Windows Update of version of Edge, there's no going back.
Edit: might be wrong on this, the Uninstall button seems to be there now, but not before.
This is why it is a good idea to do a image backup before you do an update, even a small one.
This is one thing the old restore function in windows XP, 7 and 8 was good at, it is still in ten, but disabled at default. It has saved me a few times over the years, now I just back up my system
Desktop machine Ryzen powered with windows 10 , reluctantly.