Nextdns is enough, but uBlockOrigin or uMatrix would be more effective for the web, along with DecentralEyes, CanvasBlocker, WebRTC Blocker, SmartReferrer, and other such extensions.
Also, aggressive blocking can cause some websites and apps to break. dns.adguard.com (DoT) and https://dns.adguard.com/dns-query (DoH) whilst not aggressive don't break as many websites and apps, and would remain free to use. Nextdns would cost you $1 a month if you need more than 500k queries once they're out of the beta stage.
Also, aggressive blocking can cause some websites and apps to break. dns.adguard.com (DoT) and https://dns.adguard.com/dns-query (DoH) whilst not aggressive don't break as many websites and apps, and would remain free to use. Nextdns would cost you $1 a month if you need more than 500k queries once they're out of the beta stage.