/proc/self/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 0x55fce7cfdbe0 0x400 0x9 0x0 0xffffffffffffffbb 0x7ffe3eed9410 0x7fba4f59317e