/proc/2/root/proc/self/task/4/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 /.
b53ac0000-7ffe097b1000 ---p 00000000 00:00 0 [rollup]Rss: 133908 kBPss: 133108 kBPss_Anon: 77228 kBPss_File: 55880 kBPss_Shmem: 0 kBShared_Clean: 1596 kBShared_Dirty: 0 kBPrivate_Clean: 55084 kBPrivate_Dirty: 77228 kBReferenced: 133908 kBAnonymous: 77228 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB