/proc/2/root/proc/4/task/9
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 /.
11:perf_event:/10:devices:/9:pids:/8:freezer:/7:blkio:/6:hugetlb:/5:net_cls,net_prio:/4:cpu,cpuacct:/3:cpuset:/2:memory:/1:name=systemd:/