Here's Microsoft's official support page for how to manage these notification messages which are only sent once you've chosen to 'Allow' them by selecting it when a popup asked during a previous browsing session.
Manage website notifications in Microsoft Edge - Microsoft Support
Always pay close attention to any popups, since they'll often try to trick you into selecting the ability to send you notifications by graying out the option to decline or stating it as something that doesn't seem like what you want in order to get you to accept their notification spam.
Never click 'Allow' unless it's a website you trust like your bank or some other major name business, since most are just advertising spammers like this one.
Rob