[adrianmsmith]

I'm not sure if that's an answer to your question, but there are at least companies today that do no allow their programmers to use GenAI e.g. OpenAI, including tools running locally.

You could (for now) work for such a company.

That doesn't mean they'll be around in the future, maybe they will get left behind. But the future is difficult to predict, and it's at least the case that such companies exist today.

Then again it might be difficult to identify such companies. I tried to find any public information that the company I'm thinking of doesn't use AI (large US company, 10k+ employees) and I couldn't. So you probably wouldn't know, before working there, that they don't allow AI usage. So maybe this advice isn't as actionable as I'd hoped.