I got a couple hits from 136.119.129.236 (google user content) with user-agent:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36
They got the "I think you're a bot" page (because X11; Linux x86_64). First request was a head, the next was get.
A second later, from same IP, got a head and get for a PDF file. But this time the UA was:
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko); compatible; ShapBot/0.1.0
This didn't match any existing rules so they got the file. I've now added 136.119.0.0/16 to my IP blocking, and ShapBot is going into my UA rules.