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