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