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