Yawn. Signal is still the easiest option to setup and perfectly fine opsec for the majority of people. For a centralized service, it is both open source and has a long history of malicious compliance with court orders. On top of that, it's maintained by a nonprofit foundation, the best possible steward for a centralized service.
If you're an activist or engaged in activism, use SimpleX or something similar. If you're just trying to chat with your aunt and don't want prying eyes seeing what you chat about, Signal is sufficient.