/proc/self/task/4/root/proc/2
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 /.
5556eabe2000-7ffdd11ff000 ---p 00000000 00:00 0 [rollup]Rss: 4780 kBPss: 4056 kBPss_Anon: 1768 kBPss_File: 2288 kBPss_Shmem: 0 kBShared_Clean: 1444 kBShared_Dirty: 0 kBPrivate_Clean: 1568 kBPrivate_Dirty: 1768 kBReferenced: 4780 kBAnonymous: 1768 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB