DNS over HTTPS and Prefetch

Hello guys !!

I want to ask you something.

Is having DoH enabled via windows settings and on my browser (Firefox) disabled the DNS prefetch for both HTTP and HTTPS makes sense ??

Because I had read that disabling DNS prefetch doesn't work or doesn't do anything if you have DoH.

Is that true ??

It does work. I believe what you are referencing are the fake DNS queries that still use regular DNS to non-existent FQDNs. I forget what it's called but some browsers do that to check that DNS providers aren't sending you advertising on non existent domains.