Thanks  for this link, this is clear !

Le 3 août 2020 19:07:34 GMT+02:00, Jean Louis <bugs@gnu.support> a écrit :
>Mostly I am in agreement with Adrien.
>
>There is this review that I found, that you all may find it
>interesting:
>https://wiki.404.city/en/XMPP_vs_Matrix
>
>For me XMPP does so many things, we create business with XMPP, we have
>all personnel within XMPP coordination, and we use our own servers and
>domains, and XMPP work well in worst network conditions as by the
>Bwindi Impenetrable Forest in Uganda.
>
>Most important it is free software in terms as in freedom, we are free
>to distribute it, and we gain good communication, secure private
>network line without spying from third unknown parties.
>
>Jean