/proc/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: 2699 2594 NET_TX: 0 0 NET_RX: 41071 57954 BLOCK: 146 2573 IRQ_POLL: 0 0 TASKLET: 458 11 SCHED: 5902 5363 HRTIMER: 0 0 RCU: 5466 6290