/proc/self/root/proc/self/root/proc/thread-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 /.
202 0x55b8aa9ce608 0x189 0x1b90 0x0 0x0 0xffffffff 0x7f6ae37fdb40 0x7f6b33aba37a