Disable Microsoft Edge Pop-up Notifications in Taskbar and System Tray
Solution 1:
According to How-To Geek these advertisements can be disabled in the Windows 10 Settings:
They’re not generated by the Microsoft Edge app on your PC. Instead, they’re generated by the Windows operating system itself.
You’ll find this setting in the Settings app. Open the Start menu and click the Settings icon to launch it.
Navigate to System > Notifications & Actions in the Settings app.
Scroll down to the Notifications section and disable the “Get tips, tricks, and suggestions as you use Windows” option.