Pretty much all library packages were renamed in the 64-bit time_t migration to add t64
(even on 64-bit platforms).
Instead of complicating the doc with conditional package names, suggest installing the -dev
packages which still have the same name, and besides that, are the right way to go about it as they contain the “user facing” C++ headers needed to build against Qt5. They pull in the necessary library packages through dependencies.
For Fedora, devel packages are already suggested.
This affects Ubuntu 24.04 and Debian Testing.