/proc/4/task/8/root/proc/self/task/8/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 /.
763e00000-7ffea41fc000 ---p 00000000 00:00 0 [rollup]Rss: 309104 kBPss: 308372 kBPss_Anon: 252468 kBPss_File: 55904 kBPss_Shmem: 0 kBShared_Clean: 1460 kBShared_Dirty: 0 kBPrivate_Clean: 55176 kBPrivate_Dirty: 252468 kBReferenced: 309104 kBAnonymous: 252468 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB