>day to day, when I ask it "build me this feature" it uses strange abstractions, and often requires several attempts on my part to do it in the way I consider "right"

Then don't ask it to "build me this feature" instead lay out a software development process with designated human in the loop where you want it and guard rails to keep it on track. Create a code review agent to look for and reject strange abstractions. Tell it what you don't like and it's really good at finding it.

I find Opus 4.5, properly prompted, to be significantly better at reviewing code than writing it, but you can just put it in a loop until the code it writes matches the review.