Microsoft Edge: Updates that May Impact Your Business

Microsoft Edge’s new sidebar may fail in its attempt to catch up with other web browsers

While allowing you to access many valuable features, the sidebar will launch the webpage for some apps in Office and Games, making the sidebar useless.  

Source: https://www.techradar.com/news/microsofts-new-attempt-to-get-you-to-ditch-google-chrome-for-edge-is-bound-to-fail