/proc/self/task/4/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 /.
2f566c0000-7fffb5b8d000 ---p 00000000 00:00 0 [rollup]Rss: 270304 kBPss: 269568 kBPss_Anon: 214852 kBPss_File: 54716 kBPss_Shmem: 0 kBShared_Clean: 1468 kBShared_Dirty: 0 kBPrivate_Clean: 53984 kBPrivate_Dirty: 214852 kBReferenced: 270304 kBAnonymous: 214852 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB