FreeMono font will not work for Windows 10 consoles
Author: astralisCreated May 13, 2022Updated Sep 18, 2022
Therefore, it appears this no longer works with Windows 10, at least.
The font will not appear in the Windows console prompt. There are some fonts that will never display despite being correctly added to the registry. FreeMono is one of them that will not work with Windows 10.
Source: yaronn/blessed-contrib