How do I get rid of popup ads like these? I get them frequently on all sites when using Brave on my desktop pc.
Hello @Sandsten
go to brave://settings/content/notifications and remove all allowed site from there or even disable Sites can ask to send notifications to block all notifications from all site if you like
hope that help and have a nice day 
The notifications are still showing. Can I target theses specific ones? Since I suspect theses notifications are from the browser itself.
you welcome if it from the ads reward then you need to turn off the ads
go to brave://rewards/ then turn off ads
but if you want to keep ads on and just want to turn off certain ads then from the reward page go to ads history then click on the 3 dots next to that ads that you do not like then dislike
hope that help and have a nice day
Oh I see, I did not realize that the ads would look like that when enabling that thing. I thought they would be integrated to websites or something. But now they are gone. Many thanks!
you very welcome