/proc/thread-self/root/proc/self/root/proc/4/task/9/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 /.
b2fd500000-7fff409e9000 ---p 00000000 00:00 0 [rollup]Rss: 112980 kBPss: 112274 kBPss_Anon: 56436 kBPss_File: 55838 kBPss_Shmem: 0 kBShared_Clean: 1408 kBShared_Dirty: 0 kBPrivate_Clean: 55136 kBPrivate_Dirty: 56436 kBReferenced: 112980 kBAnonymous: 56436 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB