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