/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 171498 0 760 0 7834 1174 0 0 20 0 11 0 8223 1941467136 66634 18446744073709551615 93866565062656 93866608822197 140724105745872 0 0 0 0 16781312 17922 0 0 0 17 0 0 0 3 0 0 93866665422752 93866666308464 93866709045248 140724105749862 140724105750100 140724105750100 140724105752549 0