/proc/self/task/5/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 /.
4a1c0000-7ffc7d2b5000 ---p 00000000 00:00 0 [rollup]Rss: 266124 kBPss: 265352 kBPss_Anon: 209260 kBPss_File: 56092 kBPss_Shmem: 0 kBShared_Clean: 1540 kBShared_Dirty: 0 kBPrivate_Clean: 55324 kBPrivate_Dirty: 209260 kBReferenced: 266124 kBAnonymous: 209260 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB