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