Ubuntu Use Noto Sans CJK SC as Default Fallback Font

如何正确为 Noto Sans CJK 配置 fontconfig 使中文不会被显示为日文字型？

How to#

sudo vi /etc/fonts/conf.d/64-language-selector-prefer.conf

Use dd (delete a whole line) and p (paste) to move Noto Sans CJK SC to the first. And then :wq (write and quite). Restart running program may apply the changes.

About The Default Order#

JP, KR, SC, TC. They are sorted by alphabet. So a newly installed copy of Ubuntu would prefer Noto Sans CJK JP as default fallback font.

CJK, Chinese, Japanese, Korean, is also sorted by alphabet resulting in Chinese C first.