How to figure out the content's anycast PoP?

Hi, I know Cloudflare is using anycast to deliver content to the users, so is there any way we can figure out which anycast PoP delivers the current content?
I saw the CF-RAY in the response header, but the official manual only explained the request header which points to the PoP which retrieves the content from the origin server.

But I did not find any explanation on the response header.

In requests the CF-RAY header tells which PoP connected to the origin.
In responses the CF-RAY header tells which PoP the client is connected to.
While these values often match, they may differ if the zone has Argo Smart Routing enabled.

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