Robert Pluim <rpluim@gmail.com> writes:

> I tried here with 'Noto Sans CJK HK', which seems to have every
> variant under the sun, and got:
>
> Weight: 400, symbol normal
> Weight: 500, symbol semi-bold
>
> I donʼt know if Debian Stable has that font.

I didn't have the HK variant, but I used CJP JP, and got the same as
you.

However, I don't see any difference between those two in Emacs.

Regular: