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