/proc/thread-self/root/proc/4/task/9/root/proc/4/task/7
This explorer reads the filesystem of the server it runs on, so /workspace/user isn't present here. Browsing and the terminal still work against this server's own disk from /.
11:memory:/10:devices:/9:cpu,cpuacct:/8:freezer:/7:pids:/6:blkio:/5:perf_event:/4:hugetlb:/3:cpuset:/2:net_cls,net_prio:/1:name=systemd:/