Windows 7 and 8.1 will receive the new Edge via Windows Update
Microsoft will automatically deploy the new version of its browser based on the Chromium engine on computers using Windows 7 and Windows 8.1 systems.
Microsoft Edge: How to enable Quiet notification requests
When you’re not vigilant today, you are receiving a slew of unwelcome alerts from a lot of websites. Not only does Microsoft Edge have the right to block them but also to mask them.