/proc/thread-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 /.
4 (node) S 2 2 0 0 -1 4194560 73630 0 748 0 13295 1686 0 0 20 0 11 0 5268 1924902912 63727 18446744073709551615 94370409873408 94370453784501 140728556865264 0 0 0 0 16781312 17922 0 0 0 17 0 0 0 4 0 0 94370509237952 94370510106736 94370875650048 140728556869005 140728556869243 140728556869243 140728556871653 0