/proc/4/task/5/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 0x7ffc99cab220 0x400 0x151 0x0 0x8 0x7ffc99caa490 0x7f55f18b4ec8