/proc/4/task/8/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 /.
2b146c0000-7ffc593f1000 ---p 00000000 00:00 0 [rollup]Rss: 269888 kBPss: 269124 kBPss_Anon: 213120 kBPss_File: 56004 kBPss_Shmem: 0 kBShared_Clean: 1524 kBShared_Dirty: 0 kBPrivate_Clean: 55244 kBPrivate_Dirty: 213120 kBReferenced: 269888 kBAnonymous: 213120 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB