Tox also isn’t that great security wise. It’s hard to beat Signal when it comes to security messengers. And Signal is open source so, if it did anything weird with private keys, everyone would know

i saw your dog using arch linux

I think in cases like this, I’d rather the responsibility of burden be shifted towards individuals with autonomy than to large corporations. But I suppose in that case (reductionism warning) people might as well just use Linux.