On Arch Linux the PDFs produced by LibreOffice 126.96.36.199 do not render text that uses the Cantarell font. The font is provided by the package cantarell-fonts, installed as a dependency of GNOME.
Steps to reproduce:
1. Open a LibreOffice program (e.g., Writer or Calc) and type some text.
2. Select the Cantarell font for some of the text.
3. Export the document as a PDF (via the "Export Directly as PDF" button).
4. Open the created PDF with a PDF viewer (e.g., evince). The text that uses the Cantarell font does not appear in the PDF. Text using other fonts is rendered normally.
*** This bug has been marked as a duplicate of bug 103596 ***
*** This bug has been marked as a duplicate of bug 108497 ***