/proc/4/task/4/root/proc/2/task/2/root/proc/self/root/proc/thread-self/root/proc/thread-self
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:freezer:/10:hugetlb:/9:memory:/8:net_cls,net_prio:/7:pids:/6:blkio:/5:devices:/4:perf_event:/3:cpu,cpuacct:/2:cpuset:/1:name=systemd:/