there is a definite irony in switching from being vendorlocked to Signal (open source but closed and locked to a US non-profit) to being vendorlocked to Wire (open source but closed and locked to a German/Swiss for-profit) - talk about jumping from the frying pan into the fire :)

Meanwhile the rest of Europe (and much of the rest of Germany) seems to have converged on Matrix as a genuine open standard with various different commercial vendors (Element, Rocket Chat, Famedly, connect2x etc), avoiding vendor lock and so giving actual digital sovereignty: https://element.io/matrix-in-europe

Also NATO, I understand. https://element.io/de/case-studies/nato

i suppose that's what you get when you desire secure communication on one hand but at the same time strive for total surveillance. i'm not sure what data wire is able to provide when legally requested but at least they know where to send the letter.