Several years ago, I used Blockada, which was frequently recommended. According to some discussion threads, it seems to have fallen from grace.
What ad blocker that doesn’t require root do you use? What’s your experience with it? Would you recommend it?
If you’re using Chrome, that’s why. Chrome bypasses your DNS settings and uses Google’s DNS because they found using the system settings was affecting their ad revenue. Using Firefox fixes this, although in Firefox you can just use ublock origin anyway, which works even better.