/proc/self/root/proc/self/task/5/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 10 1 1cpu 7 54 1cpuacct 7 54 1blkio 3 51 1memory 6 68 1devices 11 51 1freezer 4 4 1net_cls 5 1 1perf_event 8 1 1net_prio 5 1 1hugetlb 9 1 1pids 2 51 1