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