Is there a reason someone would need to eat more intentionally when on both medications at once?

Yes, since both medications commonly reduce appetite, the natural hunger cues that normally prompt eating can become significantly quieter or disappear for stretches of the day, making it easier to under-eat without intending to. Many people managing both find scheduled eating (rather than waiting to feel hungry) and prioritizing protein and nutrient density within smaller meals becomes more important than it might be on either medication alone. References: https://obesitycanada.ca/healthcare-professionals/adult-clinical-practice-guideline/

Basically had to start treating meals like scheduled appointments once I was on both, hunger just wasn't a reliable signal anymore either way.