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