I currently use Telegram for my friends and family, but have reluctantly come to the conclusion that the UK Government is either reaching agreement for backdoors with messaging services, or is trying its hardest to.
I’m also on Element/Matrix. Before I try to get my contacts to join me on there, should I be aware of any privacy issues or is that a good place to head?
The downside of Signal is that it’s centralized, and thus at the whim of those who run it. Structurally, it’s not really different from Whatsapp or Telegram except for who owns it.
I don’t think that’s a fair comparison, simply because their structures are quite different. Signal is FOSS run by a 501©3 non-profit, whereas Whatsapp is obviously run by Meta and data mines its users; Telegram is also a nonprofit, but privacy was never their goal or mission.
They’re all centralized, which I agree is a negative, but if something must be centralized, being run by a nonprofit foundation whose mission is privacy and E2EE is about the best option you could hope for in that scenario.