25-30k pixel 7pro or moto razor 40 flip used

Wont recommend flip phones. pixel 7 pro better in my opinion.

razr all the way!

I have used the zflip 3. Honestly wouldn't recommend its very easy to break like very very easy other than durability other stuff is fine but for me my screen started to peel near the fold. I would say go for the pixel.

Pixel 7 pro is the one to go for better camera, build quality, updates
Cons - avg battery, tends to get warm on 5g

I saw someone selling a P7P here few days ago. That's one good phone and the last Pixel with a non joker aspect ratio. Even I'm thinking of 'downgrading' from my 8.
But Not sure what your requirements are though and no idea about flip phones but the fact that they cut a lot of corners for that compactness factor. Although foldables are the future.