You can use custom allocators to minimize dynamic allocation. STL now provides some of these allocators out of the box, but it still can be useful to define your own. Arena or memory pool allocators are the first that come to mind.
While I work in a field where such things are necessary (real-time audio programming), I doubt that such things are relevant for someone just starting out with C++...
True, but they would probably use a framework like JUCE which does a great job at hiding the complexity. Writing a VST3 plugin from scratch is not for the faint of heart.
