Microsoft released a new Chromium Edge build to the Edge Insiders, who are in the Dev Channel, bumping up the version to 90.0.789.1. The latest build in the Dev Channel comes with a simplified right-click menu for PDFs, new management policies for Quick View Office files, and more.
The latest build also includes several reliability improvements and a lot of bug fixes. Here is the complete changelog of the latest Microsoft Edge build 90.0.789.1 for the Dev channel Edge Insiders.