Yes, I do. It is quite helpful. For main coding tasks I use Claude, but if my credits vanish or I have enough time to get an answer, I use Ollama extensively. I would recommend for developers to maintain their own AI pipeline as well.
For anything dealing with personal data, like browser inputs, I would exclusively use local models too. Probably still niche, but non-local AI would be a deal breaker for me for both browsers and OS.