We could call it The Premature Abstraction Anti-pattern :) Been a victim of this myself a few times myself so I normally do exactly what you've suggested and w

We could call it The Premature Abstraction Anti-pattern :) Been a victim of this myself a few times myself so I normally do exactly what you've suggested and wait until a clear, and still performant abstraction has emerged from the code and slowly refactor-in the abstraction. But it's always better to do this on a nearly completed codebase, so at the end, where you should naturally be looking to remove lines, not add.