Did the issue present with default Shields settings?
Yes
Where and how do the ads appear? (fill out below) Reddit.com. Shields active - block ads, block 3rd party cookies, block all fingerprinting.
On the homepage, and other parts of the website too. You can see the 300x600 and the 300x250 units. Sometimes the ad’s weirdly disappear when you scroll though. Maybe a glitch on the site.
OP is probably talking about “promoted posts”. Brave is able to block the sidebar adds, but the adds Reddit themselves insert as “posts” are not handled.
Chrome + UBlock Origin blocks these, so currently that’s a much more comfortable experience than just Brave.