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