/proc/4/task/10/root/proc/4/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 /.
516a40000-7ffd68fe4000 ---p 00000000 00:00 0 [rollup]Rss: 230012 kBPss: 229244 kBPss_Anon: 173276 kBPss_File: 55968 kBPss_Shmem: 0 kBShared_Clean: 1532 kBShared_Dirty: 0 kBPrivate_Clean: 55204 kBPrivate_Dirty: 173276 kBReferenced: 230012 kBAnonymous: 173276 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB