- linux situation has not changed much because projects have always been a mix

- keep putting a license anyway, we can always change them, and it shows the project owners intent, even if some provisions are later struck down in a case (like "as is, no liability")

- projects that are mostly/completely generated represent a new category

A few sources from a quick search and read for these points

- https://www.redhat.com/en/blog/ai-assisted-development-and-o...

- https://legalblogs.wolterskluwer.com/copyright-blog/open-sou...

- https://allthingsopen.org/articles/copyright-problem-ai-gene...

- https://opensource.org/ai/webinars/copyright-right-answer-fo...

I use a permissionless license (MIT/Apache-2), so I'm personally not that worried about it. Do what you want with my creations.