I don't know all the details because I'm not a cryptologist, but Wire messenger seemed to have solved this in a way that wasn't annoying. I haven't used it sin

I don't know all the details because I'm not a cryptologist, but Wire messenger seemed to have solved this in a way that wasn't annoying. I haven't used it since they pivoted, so can't speak much to its implementation, but I remember it working seamlessly across devices.