/proc/2/root/proc/thread-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 /.
2e5e200000-7ffd534b5000 ---p 00000000 00:00 0 [rollup]Rss: 274412 kBPss: 273630 kBPss_Anon: 217772 kBPss_File: 55858 kBPss_Shmem: 0 kBShared_Clean: 1560 kBShared_Dirty: 0 kBPrivate_Clean: 55080 kBPrivate_Dirty: 217772 kBReferenced: 274412 kBAnonymous: 217772 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB