/proc/4/task/6/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 11 1 1cpu 3 37 1cpuacct 3 37 1blkio 4 34 1memory 8 49 1devices 5 34 1freezer 6 4 1net_cls 2 1 1perf_event 10 1 1net_prio 2 1 1hugetlb 9 1 1pids 7 34 1