1795 blocked from 17 apps

I’m getting my e/os fp6 in a couple of days. Can I customise which DNS resolver the built in blocker uses? I have finetuned my nextdns settings in the last couple of months and would like to continue using it with this built in solution

Just saying

1. big number go up ≠ you are private. You Blockes 20% of tracking. You are still providing a lot of data
2. DNS Blockers are still a temporary measure to a permanent Problem. Too many people usw blockers? They will simply put their ad services into their usual domain instead of a subdomain. And with that, all DNS Blockers are unusable.
3. you are not de-anything. You want to change something? Use alternatives instead of hoping for workarounds.