reposting since initial post seems has failed with odd https://www.oneukrainian.com/tmp/annex-blew-1.png .

After spending some time in troubleshooting the situation that git-annex for some reason claims that origin remote does not support git-annex, I have ran into 11 year old discussion which boils down to

It would be a good idea to git config annex.sshcaching false in repositories stored on encfs.

As AFAIK encfs is generally working ok (seems to test ok with bleeding edge ref), and overall if there is something wrong, it better be fixed and not "avoided", I think that git-annex should either inform user about necessity to not do internal caching within the same repository (e.g. to have it configured to be shared somewhere under ~/.cache/` instead or a like) if file system does not support the ssh caching, or even somehow automagically handle the case, but it should not mislead in its reporting stating that remote does not support git-annex whenever it does.

With this minimalistic reproducer where origin on a regular filesystem and a clone is under encfs, we receive a misleading error:

#!/bin/bash                                                                                                                                                                         
export PS4='> '                                                                                                                                                                     
set -x                                                                                                                                                                              
set -eu                                                                                                                                                                             

cd "$(mktemp -d ${TMPDIR:-/tmp}/dl-XXXXXXX)"                                                                                                                                        

topd=$PWD
mkdir -p denc{r,}; encfs --standard --extpass="echo 123" $PWD/denc{r,}

cleanup () {
    # to possible kill/troubleshoot
    if ! fusermount -u $topd; then
        lsof $topd/denc
        echo "ERROR: failed to unmount"
        exit 1
    fi
}
trap cleanup SIGINT SIGHUP SIGABRT EXIT


mkdir d
(cd d; git init; git annex init; echo 1 > 1.dat; git annex add 1.dat; git commit -m 1 1.dat)

echo "cloning locally and ssh works ok, testing"
git clone localhost:$topd/d d-clone
git -C d-clone annex wanted origin

echo "but would not be happy under encfs with misleading error:"
cd denc
git clone localhost:$topd/d d-clone
git -C d-clone annex wanted origin

> git -C d-clone annex wanted origin
  Unable to parse git config from origin
  Remote origin does not have git-annex installed; setting annex-ignore
  This could be a problem with the git-annex installation on the remote. Please make sure that git-annex-shell is available in PATH when you ssh into the remote. Once you have fixed the git-annex installation, run: git annex enableremote origin
git-annex: cannot determine uuid for origin (perhaps you need to run "git annex sync"?)

which is simply due to the fact that git-annex does not only unable to parse, it is unable to connect. But if so, IMHO ideally it should avoid claiming anything about git annex installation there.