They’re absolutely being “fixed” with AI too.

https://github.com/torvalds/linux/blob/master/Documentation/process/coding-assistants.rst

It was a whole thing back and forth that Linus finally ruled on. It’s supposed to be under the purview of a specific human ultimately but as we’ve seen with countless other projects people get lazy fast with LLMs and testing and review does slip. I trust Linux overall to be better than many other projects yes, but to state AI is not doing development too when it’s very much allowed and discussed is blind to what’s been happening in the project.