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