Comment 1 for bug 1575555

Well, the package installs a bunch of font weights:

$ dpkg-query -W fonts-noto-cjk
fonts-noto-cjk 1:1.004+repack1-1
$ fc-match -a | grep 'Noto Sans CJK SC'
NotoSansCJK.ttc: "Noto Sans CJK SC" "Regular"
NotoSansCJK.ttc: "Noto Sans CJK SC" "Medium"
NotoSansCJK.ttc: "Noto Sans CJK SC" "DemiLight"
NotoSansCJK.ttc: "Noto Sans CJK SC" "Light"
NotoSansCJK.ttc: "Noto Sans CJK SC" "Thin"
NotoSansCJK.ttc: "Noto Sans CJK SC" "Bold"
NotoSansCJK.ttc: "Noto Sans CJK SC" "Black"

Explicitly setting the font in Chrome/Chromium is discussed as a workaround in the Ask Ubuntu question you asked (<http://askubuntu.com/q/763632>). One question is if the problem lies in Chrome/Chromium, or if it would be possible to fix it in the fontconfig package by further tweaking the font weights handling (see bug #1556457).