two homepods in stereo mode which will respond to hey Siri

What you initially pair them it is always the left speaker that answers.

if you want the right speaker to be the one that answers press and hold the right speaker and tell it to turn on Siri

It seems to be the one you are closest too. The voice response if any will come from that one alone. If you've asked for anything to play then they both should in stereo.

tt2

Ah, apologies for my error then. I set mine up several days ago but I've been too busy to get properly familiar with them and I'm not at home right now.

tt2

Perhaps which ever one was set up first is the 'main' pod??

-Just A. Guess

That would be the left one in my case. Easy way to check that would be to physically swap them and then swap the stereo pairing around. Does the Siri response move, or is it still on the left?

tt2

Based on that information I would like to edit my post...

Perhaps which ever one was set up first second is the 'main' pod?? 😎

😁

tt2