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