/proc/self/root/proc/thread-self/root/proc/self/task/4/root/proc/2/root/proc/4/task/4
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 /.
518000000-7ffd05ae8000 ---p 00000000 00:00 0 [rollup]Rss: 258304 kBPss: 257528 kBPss_Anon: 201636 kBPss_File: 55892 kBPss_Shmem: 0 kBShared_Clean: 1548 kBShared_Dirty: 0 kBPrivate_Clean: 55120 kBPrivate_Dirty: 201636 kBReferenced: 258304 kBAnonymous: 201636 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB