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