/proc/2/root/proc/self/task/10
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 /.
4811d00000-7ffe8c9b1000 ---p 00000000 00:00 0 [rollup]Rss: 113448 kBPss: 112756 kBPss_Anon: 58080 kBPss_File: 54676 kBPss_Shmem: 0 kBShared_Clean: 1380 kBShared_Dirty: 0 kBPrivate_Clean: 53988 kBPrivate_Dirty: 58080 kBReferenced: 113448 kBAnonymous: 58080 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB