Does the frying pan go back and time and re-cook all the food using the new-fangled super important features? I don't see why the cost of new features must be borne by existing applications that don't necessarily benefit from it. Just imagine a product that is largely in maintenance mode, that QT license is just sucking money without value.

You're welcome to argue QT saves more time than its license costs, but I didn't find that to be the case. Also cmake sucks, no bazel support, lame. I have found the QT value proposition questionable at best and have largely abandoned it. YMMV.