/proc/4/task/4/root/proc/self/task/10/root/proc/2/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 /.
cc0700000-7ffdf4758000 ---p 00000000 00:00 0 [rollup]Rss: 187652 kBPss: 186990 kBPss_Anon: 130948 kBPss_File: 56042 kBPss_Shmem: 0 kBShared_Clean: 1320 kBShared_Dirty: 0 kBPrivate_Clean: 55384 kBPrivate_Dirty: 130948 kBReferenced: 187652 kBAnonymous: 130948 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB