

Sure, so let me export my data from another PC or phone. If they wanted you to have message history, they would. So I’ll respectfully disagree.
Why can she do WhatsApp but no Signal?
It’s already needing to convince people to use Signal, why also making it hard for, let’s say, your grandma.
You’re connected to a cell tower/to a router.
Your ISP can see your address before connecting to the VPN.