How important are macronutrient splits?

Your carbohydrate and fat intake don’t matter all that much for most people. There’s actually no set rule that says you need to be low carb versus high carb to lose fat. Exercise level definitely plays a role and how you feel does even more so! As long as your calories and protein are in check, you can adjust your fat and carbs based on what feels best for you, your exercise level and intensity, and your fitness goals.