/proc/self/task/4/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 /.
16b2980000-7ffcb0d5b000 ---p 00000000 00:00 0 [rollup]Rss: 267660 kBPss: 266894 kBPss_Anon: 212208 kBPss_File: 54686 kBPss_Shmem: 0 kBShared_Clean: 1528 kBShared_Dirty: 0 kBPrivate_Clean: 53924 kBPrivate_Dirty: 212208 kBReferenced: 267660 kBAnonymous: 212208 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB