/proc/4/task/5/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 /.
12ccc40000-7ffc3f599000 ---p 00000000 00:00 0 [rollup]Rss: 239420 kBPss: 238694 kBPss_Anon: 182816 kBPss_File: 55878 kBPss_Shmem: 0 kBShared_Clean: 1448 kBShared_Dirty: 0 kBPrivate_Clean: 55156 kBPrivate_Dirty: 182816 kBReferenced: 239420 kBAnonymous: 182816 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB