/proc/thread-self/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 /.
ff3480000-7ffcc37ec000 ---p 00000000 00:00 0 [rollup]Rss: 1443396 kBPss: 1442584 kBPss_Anon: 1386732 kBPss_File: 55852 kBPss_Shmem: 0 kBShared_Clean: 1620 kBShared_Dirty: 0 kBPrivate_Clean: 55044 kBPrivate_Dirty: 1386732 kBReferenced: 1443396 kBAnonymous: 1386732 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB