After digging around, I found a file that looked like it could be the settings file, but it was not plaintext.
Naturally, I told Claude all the options I knew existed in the settings and told it what I needed it to change.
After about 10 minutes poking around my system and the file, it correctly identified the bits (not bytes!) that corresponded to the two settings, and flipped them on. It. Just. Worked!
(Well, then I found out I actually needed to do quite a lot more than flipping those bits, but I still found it worth sharing).
I have many more experiences similar to these. LLMs are an amazing superpower.