/proc/self/root/proc/self/root/proc/1/root/proc/1/cwd/proc/11/task/20
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 /.
[<0>] proc_pid_stack+0xb5/0x130[<0>] proc_single_show+0x51/0xc0[<0>] seq_read_iter+0x10a/0x460[<0>] seq_read+0xf3/0x130[<0>] vfs_read+0xe7/0x330[<0>] ksys_read+0x6a/0xf0[<0>] __x64_sys_read+0x18/0x20[<0>] x64_sys_call+0x1d39/0x1f30[<0>] do_syscall_64+0x4b/0x110[<0>] entry_SYSCALL_64_after_hwframe+0x76/0x7e