Have you received ads in the past? Because if you have never gotten ads, you may have some notification permission issues - try the link below to troubleshoot the problem:
@Snakiron ,
This is apparently a known Windows 10 bug and is not actually specific to Brave .
The issue seems to occur when the app (Brave, in this case) shortcut is removed from C:\ProgramData\Microsoft\Windows\Start Menu\Programs – this results in the app not being displayed in the Windows 10 Notification settings.
The easiest way to resolve this would be to just try running the Brave installer again. Note that doing this will not overwrite any data you currently have, but I would still recom…
and if that doesn’t work see can you try going to https://www.bennish.net/web-notifications.html , and forcing the notification to pop up.