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