/proc/4/task/4/root/proc/4/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 /.
ca8f00000-7ffe1ac31000 ---p 00000000 00:00 0 [rollup]Rss: 235912 kBPss: 235124 kBPss_Anon: 178956 kBPss_File: 56168 kBPss_Shmem: 0 kBShared_Clean: 1572 kBShared_Dirty: 0 kBPrivate_Clean: 55384 kBPrivate_Dirty: 178956 kBReferenced: 235912 kBAnonymous: 178956 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB