/proc/self/root/proc/thread-self/root/proc/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 /.
12c8040000-7ffd4b9ea000 ---p 00000000 00:00 0 [rollup]Rss: 256892 kBPss: 256074 kBPss_Anon: 200092 kBPss_File: 55982 kBPss_Shmem: 0 kBShared_Clean: 1632 kBShared_Dirty: 0 kBPrivate_Clean: 55168 kBPrivate_Dirty: 200092 kBReferenced: 256892 kBAnonymous: 200092 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB