As of current OSMC (2021-12), the standard UNIX service cron is not installed by default. Otherwise, there might be tools expecting cron to be available. In my OSMC installation the two folder /etc/cron.daily and /etc/cron.hourly are populated by default, but not processed (because cron is not installed).
Of course there is an easy workaround:
apt update
apt install cron
Nevertheless you will avoid user irritation if you provide cron by default.
Regards, Michael