/proc/thread-self/root/proc/2/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 /.
281 0xd 0x7ffe394401f0 0x400 0xb 0x0 0x8 0x7ffe3943f470 0x7f3fd7a99ec8