> These are the logs:
> 
> Drawing systems...

> (process:73801): Pango-WARNING **: 21:21:21.999: Unable to open font
>   file /usr/share/fonts/liberation-sans-fonts/LiberationSans-Bold.ttf
>   for font Liberation Sans Bold 2.435546875, falling back to
>   /usr/share/fonts/google-noto-vf/NotoSans[wght].ttf

Aah, this explains everything, thanks.  LilyPond doesn't support
OpenType Font Variations, and `NotoSans[wght].ttf` is such a font.
Alas, rejecting it correctly doesn't work due to a bug in older
FontConfig versions.  It has been fixed in version 2.15; however, the
LilyPond binary bundle for version 2.24.3 as available from
lilypond.org still uses 2.14.2.  AFAICS, even the current binary
bundles for development versions use 2.14.2.  See

  https://gitlab.com/lilypond/lilypond/-/issues/6613

for more information.

The only viable solution is to remove all Variation Fonts, in
particular the `google-noto-vf` package.  It should be replaced with
non-VF Google Noto fonts.  Of course, installing the 'liberation'
fonts also helps :-)

I've opened

  https://gitlab.com/lilypond/lilypond/-/issues/6830

to track the update of FontConfig for LilyPond binaries.


     Werner

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