In my personal experience, overriding non-abstract methods is definetly the worst feature of OOP. Too often comlpex codebases have multi-level overrides, some call base method in the beginning, some call it in the end, and some none at all - and almost always this leads to incoherent contracts and behaviour.

Interface-only inheritance and composition instead of inheritance (with components or otherwise) is almost always simpler and thus more error-proof. Even if sometimes you have to repeat yourself a couple times, decrease in mental complexity is definetly worth it.