if you want to use adblock this is the only way … use remote logging and filter dns stuff to extra file
also you can have pi-hole instead( installed in lxc) and there you have some fancy dashboard stuff , pie graphs and so on …
there is option Luci>Network>DHPC & DNS>GeneralSettings>LogQueries(on/off) , that should do the stuff (maybe?). and maybe supressLogging should be set off in advancedOptions section.