What exactly unbound [DNS Query Forwarding] option does (on the GUI) ?

[opnnewbie]

My current configuration has:

- System ‣ Settings ‣ General : DNS Server set to 1.1.1.1 and 1.0.0.1 (CloudFlare)
- DNS Query Forwarding: [Enable Forwarding Mode] disabled
- DNSSEC: [Enable DNSSEC Support] enabled

The GUI help states: The configured system nameservers will be used to forward queries to.
The docs states: DNS Query Forwarding: Forward queries to configured nameservers in System ‣ Settings ‣ General : DNS Server

It seems this is NOT required since my configuration is already resolving from CloudFlare ... unless I don't understand something (most probably).

Can anyone clarify please ?