I’ve always found nutrient content to be far more important than nutrient timing. I have had absurdly busy times where I only managed to eat dinner – I still progressed, because that dinner included sufficient calories.
Basically, I don’t really stress about my inconsistent schedule, I just work eating into it where it’s most convenient. Would it be optimal to prep food and carry tupperware around? Probably. But I don’t feel the need to go that far.