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