On Artix, I had to copy the /usr/share/kbd/consolefonts/ directory into /usr/share/consolefonts . Whether I could have used the /usr/share/kbd/consolefonts directory in place or not I don't know (I didn't try). The /etc/conf.d/consolefont file uses the /usr/share/consolefonts path, so I made one.
Use the /usr/share/consolefonts directory to enlarge your boot up/down font