/proc/self/root/proc/thread-self/root/proc/self/task/15/root/proc/thread-self
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 /.
00400000-7fffe5fcc000 ---p 00000000 00:00 0 [rollup]Rss: 267908 kBPss: 266740 kBPss_Anon: 215340 kBPss_File: 51400 kBPss_Shmem: 0 kBShared_Clean: 1876 kBShared_Dirty: 0 kBPrivate_Clean: 50692 kBPrivate_Dirty: 215340 kBReferenced: 267908 kBAnonymous: 215340 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB