> https://coveryourtracks.eff.org/

I get "Our tests indicate that you have some protection against Web tracking, but it has some gaps." but nothing of too much importance I think.

I use a VPN and NextDNS.io.

The real test is whether the site believes you to be unique, which is listed separately. It reports me as "Our tests indicate that you have strong protection against Web tracking.", but I'm still uniquely identifiable.