/proc/2/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 /.
232 0x3 0x5588a16edbe0 0x400 0x9 0x0 0xffffffffffffff05 0x7ffc8b65fa90 0x7f2831faa17e