/proc/2/root/proc/self/root/proc/thread-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 /.
bd5d40000-7ffe6dba2000 ---p 00000000 00:00 0 [rollup]Rss: 267136 kBPss: 266316 kBPss_Anon: 210368 kBPss_File: 55948 kBPss_Shmem: 0 kBShared_Clean: 1636 kBShared_Dirty: 0 kBPrivate_Clean: 55132 kBPrivate_Dirty: 210368 kBReferenced: 267136 kBAnonymous: 210368 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB