Are dumbphones good for privacy?

I'm looking to get a dumb phone for privacy, I currently use a more privacy focused Pixel (Molly, F-droid, Aurora store etc) and I was wondering if it would be better to make the leap to a Nokia dumb phone (S30+) or something with KaiOS.

And no, I can't get any custom ROMs due to my need for the warranty as I live in a hot area and Pixels do not fare well with heat. I've had to swap it …

aurora dumbphones etc good nokia phone pixel privacy privacy focused store