Linux Standard Base? Not only is Qt not part of that since Jessie, lsb-desktop only provides Qt4.
https://packages.debian.org/jessie/lsb-desktop
Qt 3 was officially removed from lsb in 2015 (https://en.wikipedia.org/wiki/Linux_Standard_Base)
So unfortunately, no. Not a solution for software lifespan. Especially since LSB is all but abandoned by most Linux platforms. It also doesn't really help with BSD and other platforms.
Biting the hand that feeds IT
