strlcpy() or strscpy()?

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Recently on LCA2019, Joel Sing made a presentation about "Security 
Vulnerability Mitigations"[1]
(very good, btw). He suggests function strlcpy(3) as a secure API.
In the same conference, though, Kees Cook ("Making C Less Dangerous in 
the Linux kernel"[2]),
recommends strscpy() as more secure. So, my question is: what's the best 
to use?

Thanks in advance.


[1] https://youtube.com/watch?v=9-uNC4-RbQM
[2] https://youtube.com/watch?v=FY9SbqTO5GQ