stick [1] filed a deletion request for ttf-ibm-plex [2]:

This package already exists in the community repos.

community/ttf-ibm-plex 1.3.1-1 IBM Plex Mono, Sans, and Serif aur/ttf-ibm-plex 1.3.1-1 (2, 1.850301) IBM Plex font family

[1] https://aur.archlinux.org/account/stick/ [2] https://aur.archlinux.org/pkgbase/ttf-ibm-plex/