I unironically really love Deltachat, incredibly easy to set up and use to the point i got my 70+ yo grandma to use it and the encyption never breaks like matrix seems to constantly (at least in my experience anyways. it’s not perfect if you’re a paranoid bastard because it doesnt have PFS but like i said it’s so easy to set up and use that i think it’s a worthy tradeoff with how easy it is to make throw away accounts, and if you really need PFS there are web apps that you can use to get that