/proc/self/root/proc/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 /.
1babc40000-7ffed87ff000 ---p 00000000 00:00 0 [rollup]Rss: 157996 kBPss: 157226 kBPss_Anon: 101324 kBPss_File: 55902 kBPss_Shmem: 0 kBShared_Clean: 1536 kBShared_Dirty: 0 kBPrivate_Clean: 55136 kBPrivate_Dirty: 101324 kBReferenced: 157996 kBAnonymous: 101324 kBLazyFree: 0 kBAnonHugePages: 0 kBShmemPmdMapped: 0 kBFilePmdMapped: 0 kBShared_Hugetlb: 0 kBPrivate_Hugetlb: 0 kBSwap: 0 kBSwapPss: 0 kBLocked: 0 kB