Congrats for asking this question.
As you can see when you take all the 'bro science' recommendations and put them all together, you find that they are sometimes at odds with each other.
The human body can be pretty resourceful and flexible. The main thing to focus on is calories for your goal. After that you can narrow down a macro ratio. Personally I like 30-40% protein, 40-50% carbs, and at least 20% fats. This gives you some flexibility to fit in the meal combos that YOU like.
This is independent of calories so yes you will be eating less protein when cutting than when bulking. This should be obvious because when cutting you are looking to preserve what you have not to build more but you would be surprised how often people say you Have to have at lest 1.5g/lb (or whatever).
Also dont worry about separating your carbs and fats. If you are designing your meals around a calorie target, the concept becomes redundant.
In short, don't over-complicate it.