In the past, if you broke or lost your phone, your Signal message history was gone. This has been a challenge for people whose most important conversations happen on Signal. Think family photos, sweet messages, important documents, or anything else you don’t want to lose forever. This explains wh...
Unfortunately no, the new installation on the phone will not sync any previous chats from a desktop client.
Ah bugger, I suppose automating some sort of local/cloud/NAS backup is essential for that then.