Ya know, Signal has been audited multiple times. It’s OSS. IT sec elite has looked at it and says it’s sound. If anything is plausible, it would be your device spying on you rather than Signal.
What’s weird tho is how people think this has anything do with messaging or data privacy. This is about Telegram being used as a public platform. They can’t force Durov to decrypt anything, nor do they need to, because they already know your groups…
100% agree, anonymized data is pretty much irrelevant to the GDPR. An exception would be if it can be de-anonymized with reasonable means.