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