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