/proc/self/root/proc/thread-self/root/proc/self/task/15
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 /.
00400000-7ffed4f1a000 ---p 00000000 00:00 0 [rollup]Rss: 126712 kBPss: 125633 kBPss_Dirty: 74304 kBPss_Anon: 74276 kBPss_File: 51357 kBPss_Shmem: 0 kBShared_Clean: 1700 kBShared_Dirty: 0 kBPrivate_Clean: 50708 kBPrivate_Dirty: 74304 kBReferenced: 126712 kBAnonymous: 74276 kBKSM: 0 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB