/proc/self/root/proc/4/root/proc/2/root/proc/2/task/2/root/proc/thread-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 /.
fda2b00000-7ffe869d8000 ---p 00000000 00:00 0 [rollup]Rss: 152592 kBPss: 151854 kBPss_Anon: 95900 kBPss_File: 55954 kBPss_Shmem: 0 kBShared_Clean: 1472 kBShared_Dirty: 0 kBPrivate_Clean: 55220 kBPrivate_Dirty: 95900 kBReferenced: 152592 kBAnonymous: 95900 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB