/proc/thread-self/root/proc/2/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 4 1 1cpu 3 36 1cpuacct 3 36 1blkio 6 33 1memory 11 50 1devices 7 33 1freezer 9 4 1net_cls 2 1 1perf_event 8 1 1net_prio 2 1 1hugetlb 5 1 1pids 10 33 1