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