Took off the cat, now left with this holding bracket, what to do with it?

This sensor was not attached to the cat. It is attached to that bracket, though. The sensor was not moved or disconnected or messed with. It just resides there, you see it as is. I'll take a new better pic today.

Added pics: imgur.com/a/M96ei9s

EDIT: Looks like the 2nd oxygen sensor connector without the oxygen sensor connected (at the factory) and has a protective hood over the connector.
 
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I'm thinking of adding the werkes to my 2025 myself. Could you post a full pic of the left side to show how the left looks after removal of the cat and left pipe?