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?
But that’s not as effective these days, since port 53 is only used for traditional DNS queries, so it won’t work if the app uses DoH/DoT/DoQ etc (TCP 443/UDP 853).