/proc/4/task/7/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 /.
29abf00000-7ffc22dfe000 ---p 00000000 00:00 0 [rollup]Rss: 274640 kBPss: 273862 kBPss_Anon: 217844 kBPss_File: 56018 kBPss_Shmem: 0 kBShared_Clean: 1552 kBShared_Dirty: 0 kBPrivate_Clean: 55244 kBPrivate_Dirty: 217844 kBReferenced: 274640 kBAnonymous: 217844 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB