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