/proc/4/root/proc/2/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 /.
135600000-7ffcad9ca000 ---p 00000000 00:00 0 [rollup]Rss: 260620 kBPss: 259912 kBPss_Anon: 203976 kBPss_File: 55936 kBPss_Shmem: 0 kBShared_Clean: 1412 kBShared_Dirty: 0 kBPrivate_Clean: 55232 kBPrivate_Dirty: 203976 kBReferenced: 260620 kBAnonymous: 203976 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB