69
European Commission Trials Matrix to Replace Microsoft Teams
(www.euractiv.com)
This is a most excellent place for technology news and articles.
I mean, matrix is similar. So many official features aren't supported by various clients, and then there are non official features that the clients do support, that aren't supported by the official clients.
But matrix or XMPP, that problem is easily enough avoided at the "government rollout" level by standardising on a particular client and server combination