[pergadad]

What's the alternative? Private closed-source apps like Threema?

This also is not for official communication , it's just for any case where staff would currently use WhatsApp or similar spyware.

[dependenttypes]

I do not think that anyone suggest to use proprietary alternatives. Instead it seems that the posters in this thread would be more happy if the EU was more independent from the US by for example hosting their own signal servers and forking the client.

[jeltz]

Matrix, which is already used by the French government.