/proc/4/task/10/root/proc
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 /.
#subsys_name hierarchy num_cgroups enabledcpuset 3 1 1cpu 4 36 1cpuacct 4 36 1blkio 5 33 1memory 6 48 1devices 2 33 1freezer 10 4 1net_cls 7 1 1perf_event 11 1 1net_prio 7 1 1hugetlb 8 1 1pids 9 33 1