Websites that serve Simplified Chinese content to older browsers (e.g., Internet Explorer 11 on embedded systems) sometimes specify font-family: "fzchsjw--gb1-0", "FZHei", "Microsoft YaHei", sans-serif;. Understanding this stack ensures that the fallback chain preserves the visual weight and x-height of the original design.
If you run Linux applications on Windows using X servers like Xming or Cygwin/X, and those apps request a Chinese XLFD font, the Windows font mapper may fail and display the literal string fzchsjw--gb1-0 as a placeholder or logging output. fzchsjw--gb1-0 font