Either is always better than neither.
Some DNS filtering apps like Rethink let you add a VPN so you really can have your cake and eat it too, although they're not easy to make.
If your DNS provider also provides filtering to block trackers, yes, they would be redundant.
Yes, NextDNS has set by default an "Ads&Tackers Blocklist" and a few more to turn on.
Don't use a VPN.
OK... Care to explain?
The only purpose of vpns is to hide your ip address, which is already dynamic and is shared by many people or access location restricted content.
Privacy has become a very important issue in modern society, with companies and governments constantly abusing their power, more and more people are waking up to the importance of digital privacy.
In this community everyone is welcome to post links and discuss topics related to privacy.
[Matrix/Element]Dead
much thanks to @gary_host_laptop for the logo design :)