/proc/4/task/7/root/proc/4/task/7/root/proc/thread-self/root/proc/4
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 /.
256b180000-7ffcea90c000 ---p 00000000 00:00 0 [rollup]Rss: 210100 kBPss: 209370 kBPss_Anon: 153496 kBPss_File: 55874 kBPss_Shmem: 0 kBShared_Clean: 1456 kBShared_Dirty: 0 kBPrivate_Clean: 55148 kBPrivate_Dirty: 153496 kBReferenced: 210100 kBAnonymous: 153496 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB