/proc/self/root/proc/thread-self/root/proc
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 /.
CPU0 CPU1 HI: 0 0 TIMER: 34072 28907 NET_TX: 0 0 NET_RX: 320669 327242 BLOCK: 163 2549 IRQ_POLL: 0 0 TASKLET: 170 6294 SCHED: 68389 66378 HRTIMER: 0 0 RCU: 40319 39342