Actually the subject. I would like to clarify the point about enabling this function and including certain ports in it

I configure the settings based on this article:

https://www.tp-link.com/en/support/faq/2223/

Let's say there is an nvr connected to a separate vlan subnet on the switch, and poe ip cameras are also connected to this subnet.

Do I need to enable igmp snooping if the cameras essentially send their stream to the nvr?

and if necessary, in addition to the camera ports, is it necessary to specify the nvr connection port for operation?