/proc/4/task/4
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 /.
626ec0000-7fffd9ff0000 ---p 00000000 00:00 0 [rollup]Rss: 156256 kBPss: 155442 kBPss_Anon: 99408 kBPss_File: 56034 kBPss_Shmem: 0 kBShared_Clean: 1624 kBShared_Dirty: 0 kBPrivate_Clean: 55224 kBPrivate_Dirty: 99408 kBReferenced: 156256 kBAnonymous: 99408 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB