FYI, this doesn't appear to work on macOS, unless I'm lucky enough that Chrome has never installed anything related to this on my machine. I don't even have a ~/.config/google-chrome directory; it's possible Google is using some Apple-alternative to that standard.
Done! Edit: nevermind - i've deleted it. The community guidelines request/require that responses actually attempt to answer the question (how to block all AI usage), which this response does not address.
This has, so far, kept Chrome from (re)installing that file on my system.
Hypothetically the parts involving weights.bin aren't needed so long as the containing directory is not writable.