"We have worked on a few recent main efforts on Calls: adding a calls history, allowing the Contacts app to dial numbers, and enabling the system to receive calls when the shell is locked."
Call History, dialing from Contacts and receiving calls when locked seem like really, really low-hanging fruit. For this to be the stage of development worries me. I'm not saying they will take the money and run, they've got an impressive record on delivering, but I don't know about "We are preparing everything for the Librem 5 to be delivered soon"
If I wasn't so busy lately, it would be neat to try to get the Anki AppImage working on it