Why is session.gc_probability = 0 in php.ini?

Hi, I noticed one of my servers is unreachable. After digging in what’s going on I found out that too many session files exhausted the inodes limit. Sessions should be automatically cleared as far as I understand, but Cyberpanel seems to be setting session.gc_probability = 0 instead of the default 1, so I guess garbage collection never happens. Is this intentional or a bug?

You can add a cron for the session deletion that will run every hour and one more thing why do you store all sessions?