/proc/self/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 /.
00400000-7ffe1e8d4000 ---p 00000000 00:00 0 [rollup]Rss: 106876 kBPss: 105749 kBPss_Dirty: 54496 kBPss_Anon: 54476 kBPss_File: 51273 kBPss_Shmem: 0 kBShared_Clean: 1760 kBShared_Dirty: 0 kBPrivate_Clean: 50620 kBPrivate_Dirty: 54496 kBReferenced: 106876 kBAnonymous: 54476 kBKSM: 0 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB