MicroOS ships with a separate /var partition. As you can read here.
My /root is currently full so I am considering removing the separate partition and using a subvolume just like with /home, /root, /srv, /opt and /usr/local.
I can’t figure out why it’s setup like this in the first place. I read this redhat discussion post that stated that you might want to separate them in case /var fills up. But btrfs can set quoata’s for this.
Ah I see, according to Portal:MicroOS/Design - openSUSE Wiki it is because of the use of qgroups on the rootfs which are apparently a large bottleneck.
I still don’t really get how this requires a separate partition but I am not that familiar with qgroups.