/proc/self/root/proc/2
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 /.
2 (bootstrap) S 0 2 0 0 -1 4194560 673 0 78 0 10 11 0 0 20 0 4 0 25146 215236608 1089 18446744073709551615 94044733497552 94044734820336 140722647213744 0 0 0 0 4096 83008 0 0 0 17 0 0 0 0 0 0 94044734861720 94044734864432 94045312307200 140722647220918 140722647221137 140722647221137 140722647224292 0