/var/log/README is a file in systemd to explain the replacement of syslogd by Journal. Noticed Artix also creates it when boots up.
README -> ../../usr/share/doc/systemd/README.logs
Wondering if it's really needed...
cat /usr/lib/tmpfiles.d/legacy.conf
The explanation for this can be found here (https://github.com/systemd/systemd/blob/main/tmpfiles.d/legacy.conf.in).