/proc/self/root/proc/4/root/proc/thread-self/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 2 1 1cpu 6 36 1cpuacct 6 36 1blkio 10 33 1memory 7 47 1devices 9 33 1freezer 5 4 1net_cls 3 1 1perf_event 8 1 1net_prio 3 1 1hugetlb 4 1 1pids 11 33 1