I'd say that it depends on the license; for StackOverflow, it's CC-BY-SA 4.0 [1]. For sample code, that would depend on the license of the original documentation.

My point is: when I'm copying code from a source with an explicit license, I know whether I'm allowed to copy it. If I pick code from co-pilot, I have no idea (until tested by law in my jurisdiction) whether said code is public domain, AGPL, proprietary, infringing on some company's copyright.

[1] https://stackoverflow.com/legal/terms-of-service#licensing

That makes sense, thank you.

A number of company, including Google and probably Microsoft forbid copying code from Stack Overflow because there is no explicit license

TIL, thank you!