/proc/thread-self/root/proc/4/task/9/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 /.
a70b40000-7ffc2a9fd000 ---p 00000000 00:00 0 [rollup]Rss: 268288 kBPss: 267452 kBPss_Anon: 211516 kBPss_File: 55936 kBPss_Shmem: 0 kBShared_Clean: 1668 kBShared_Dirty: 0 kBPrivate_Clean: 55104 kBPrivate_Dirty: 211516 kBReferenced: 268288 kBAnonymous: 211516 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB