Linux phones

Will we be able to use messaging apps such as WhatsApp and Signal on Linux phones?

Looking forward to greater support for “driverless printing” in more Linux distributions, especially via IPP-over-USB. This would allow most consumer-level printers to be used directly from Linux without needing proprietary drivers and/or explicit Linux support from the printer vendor. This solves one of the common pain points when using desktop Linux at home.

Does this require a static IP address? Can it be easily used when all nodes are behind a NAT with dynamic IP addresses?