What I remember is that Bob writes to browser storage. I only have a phone so I can't confirm what the Panels are using. But it should be possible to take a snap without posting it to the chat from the browser console. As snaps are not stored in the chat but posted. It's so your teammates can see the shot. And I remember there was some snapshot problems before. Then the snaps was in a array. But maybe it was changes to only snaps.
I think chatglove have a button to toggle between team chat, all chat and both with a button press.