/proc/thread-self/root/proc/self/root/proc/2/task/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 /.
5586b1471000-7ffdf4dd4000 ---p 00000000 00:00 0 [rollup]Rss: 6460 kBPss: 5662 kBPss_Anon: 3268 kBPss_File: 2394 kBPss_Shmem: 0 kBShared_Clean: 1592 kBShared_Dirty: 0 kBPrivate_Clean: 1600 kBPrivate_Dirty: 3268 kBReferenced: 6460 kBAnonymous: 3268 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB