/proc/4/root/proc/4/task/9/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 6 1 1cpu 2 61 1cpuacct 2 61 1blkio 7 58 1memory 8 74 1devices 9 58 1freezer 5 4 1net_cls 3 1 1perf_event 11 1 1net_prio 3 1 1hugetlb 10 1 1pids 4 58 1