Is this meant as a Proton Notes equivalent ?

Same here, I’d say open source in my honest opinion, but I am no developer and since I am not a developer I don’t know the implications of making an app open source.

It has been a huge ask to get my family to use Signal instead of Whatsapp, they are somewhat tech literate. To change again to Session would be even more of a big ask, So I’m not going to bother 🤣🤣

But as you said the availability of Apps on all platforms, the ease of setup and the solid encryption is what makes it good. Its a shame that not many people know about it, same for SimpleX chat.

You could try Session. It makes a session ID like this . This can be used to contact people or for people to contact you. I’ve used it to talk to my SO a bunch of times.