/proc/2/task/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 8 1 1cpu 2 61 1cpuacct 2 61 1blkio 11 58 1memory 9 75 1devices 7 58 1freezer 10 4 1net_cls 6 1 1perf_event 5 1 1net_prio 6 1 1hugetlb 4 1 1pids 3 58 1