/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) R 2 2 0 0 -1 4194560 97315 0 750 0 1372 208 0 0 20 0 11 0 1070 2103529472 102166 18446744073709551615 94008447729664 94008491640757 140721697062144 0 0 0 0 16781312 17922 0 0 0 17 1 0 0 3 0 0 94008547094208 94008547962992 94009084047360 140721697068429 140721697068667 140721697068667 140721697071077 0