/proc/4/task/8/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 /.
3c6540000-7fff36fdc000 ---p 00000000 00:00 0 [rollup]Rss: 220532 kBPss: 219762 kBPss_Anon: 165080 kBPss_File: 54682 kBPss_Shmem: 0 kBShared_Clean: 1536 kBShared_Dirty: 0 kBPrivate_Clean: 53916 kBPrivate_Dirty: 165080 kBReferenced: 220532 kBAnonymous: 165080 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB