Hello Philip,
I'm John an Independent Advisor and a Microsoft user like you. I'll be happy to assist you today. I understand you want to revert back to the previous version of Microsoft Edge.
Press Start then search Microsoft Edge
Right click then Uninstall
If it doesn't work, Please try this workaround to Uninstall the Edge Chromium then Edge legacy will be reinstated together with your favorites.
Open Edge Chromium > Click 3 dots > Help and Feedback
Select About Microsoft Edge
Take note of the version
Press Start then search command prompt
Right click then run as administrator
At the command prompt, copy paste the following command, and then press ENTER:
(Note: You may try to change 84.0.522.52 below depending on the Edge Version you take note earlier.)
cd "C:\Program Files (x86)\Microsoft\Edge\Application\84.0.522.52\Installer"
After that, copy paste the following command, and then press ENTER:
setup.exe --uninstall --system-level --verbose-logging --force-uninstall
Once Microsoft Edge is uninstalled, you will now have access to Edge Legacy.
If it still doesn't work, You can try to use Revouninstaller. It's free, you don't need to buy it. Kindly download and install the software. Select Microsoft Edge then Uninstall.
https://www.revouninstaller.com/revo-uninstalle...
I hope this helps! Please let me know if you have any further concerns.
Sincerely
John DeV
Independent Advisor