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