/proc/4/task/9/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 /.
625040000-7fff90c00000 ---p 00000000 00:00 0 [rollup]Rss: 245432 kBPss: 244644 kBPss_Anon: 188688 kBPss_File: 55956 kBPss_Shmem: 0 kBShared_Clean: 1572 kBShared_Dirty: 0 kBPrivate_Clean: 55172 kBPrivate_Dirty: 188688 kBReferenced: 245432 kBAnonymous: 188688 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB