Mistral --> pseudo-open-source

Linux --> not relates to Europe (but amazing choice)

Vivaldi --> only source available

Pretty good project, but is it the future to have mainly web apps?

As I seen in other comment I think that the protocol is audited not really the app and servers In comparison SimpleX is audited pretty regularly

Do not use default firefox version there are horrible, if you want to stay on firefox pls consider using Mull 😃 And maybe grayjay is a good option but I dont know exactly the app…