/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 /.
371ca40000-7ffddb78e000 ---p 00000000 00:00 0 [rollup]Rss: 1314288 kBPss: 1313590 kBPss_Anon: 1257648 kBPss_File: 55942 kBPss_Shmem: 0 kBShared_Clean: 1392 kBShared_Dirty: 0 kBPrivate_Clean: 55248 kBPrivate_Dirty: 1257648 kBReferenced: 1314288 kBAnonymous: 1257648 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB