/proc/thread-self/root/proc/4/root/proc/thread-self/root/proc/2/task/2/root/proc/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 /.
b7cd00000-7ffc535eb000 ---p 00000000 00:00 0 [rollup]Rss: 284556 kBPss: 283764 kBPss_Anon: 227708 kBPss_File: 56056 kBPss_Shmem: 0 kBShared_Clean: 1580 kBShared_Dirty: 0 kBPrivate_Clean: 55268 kBPrivate_Dirty: 227708 kBReferenced: 284556 kBAnonymous: 227708 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB