I am using Brave Version 1.21.77 Chromium: 89.0.4389.90 (Official Build) (64-bit) on a Windows machine and I have never seen a Ad Notification. I do see Ads when I start a new window and am accumulating BAT and views/month from them.
Notifications are turned on for Windows and I receive other alerts.
Brave Rewards are turned on and set to 5/h for testing.
I am getting popups on all my other computers synced with same account (2 other)
Anything I can check?