/proc/self/root/proc/4/task/4/root/proc/4/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 /.
96477c0000-7ffd3adef000 ---p 00000000 00:00 0 [rollup]Rss: 178032 kBPss: 177378 kBPss_Anon: 121280 kBPss_File: 56098 kBPss_Shmem: 0 kBShared_Clean: 1304 kBShared_Dirty: 0 kBPrivate_Clean: 55448 kBPrivate_Dirty: 121280 kBReferenced: 178032 kBAnonymous: 121280 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB