source-han-mono does not appear in "Fixed Width" font set on macOS

[kirbyzhou]

Description

SourceHanMono.ttc Version 1.002
macOS Monterey 12.1 (21C52)

Expected:

After installing this font, you can see it in the fixed-width font set in Font Book.

Actual:

The font cannot be found in Font Book.
But cannot be found in the set of fixed-width fonts in Font Book.