fontconfig version 2.14 released on 2022-03-31 includes a huge performance boost related to this problem. The relevant code change is https://gitlab.freedesktop.org/fontconfig/fontconfig/-/commit/8022ab4aff469a8f095ce3168d879d3e0b3605ef
I have Arch Linux and they shipped the 2.14 version and font selection list for me is quite fast with gtk3 LibreOffice.
fontconfig version 2.14 released on 2022-03-31 includes a huge performance boost related to this problem. The relevant code change is https:/ /gitlab. freedesktop. org/fontconfig/ fontconfig/ -/commit/ 8022ab4aff469a8 f095ce3168d879d 3e0b3605ef
I have Arch Linux and they shipped the 2.14 version and font selection list for me is quite fast with gtk3 LibreOffice.