I have been using adguard dns on my phone for years. For the past one year or so also using adblockers on browser (Firefox). Used to watch youtube with ads. Got fed up moved to watching youtube in browser with adblocker, then finally moved to newpipe sponsor block when youtube started adblocker shenanigans. For pc I use cloud flare dns, regular adblockers (Firefox) and keep privacy and security settings on strict.