Dumb Phone vs Smartphone for privacy?

I've been looking into some more privacy centric options for a mobile phone. If my goal was to maximize privacy while having a functional phone number and I was able to adapt to either solution which one should I go for if I was minimizing the capacity for someone to track me (I realize nuanced answers may exist with pros and cons);

1. A flip phone that can only make calls without texting, no internet, and calls are VoLTE since …

phone privacy smartphone