He's at a local shelter now, via animal control. Talking to the shelter today they're saying that he's being pretty shy around them -- unfortunate. I've revived my Nextdoor acct to post him there.

The fact that he's unchipped and significantly overweight makes me a little sad for his situation. It's irresponsible ownership, but I'm hopeful that he's just lost and not abandoned.

On the bright side, if no one claims him and his intake exam doesn't show anything incompatible, my orange tabby could get a brother.