Any way to decline a cam share invite?

I’ve received a cam share invite from someone that I don’t want to accept. My app choices are “Close” and “Accept”.

“Close” apparently doesn’t decline the invite - I continue to be asked to accept it.

I suppose a workaround is to accept and then delete the device from my app, but is there another way?

I don’t believe there’s a decline option. You should add it to the #wishlist!
I’m guessing this was never implemented because not many people would share a camera with someone who doesn’t want it. I would suggest the accept me delete method.