> Then came along Polars (written in Rust, btw!) which shook the ground of Python ecosystem due to its speed and efficiency
Polars rocked my world by having a sane API, not by being fast. I can see the value in this approach if, like the author, you have a large amount of pandas code you don't want to rewrite, but personally I'm extremely glad to be leaving the pandas API behind.
I personally found the polars API much clunkier, especially for rapid prototyping. I use it only for cemented processes where I could do with speed up/memory reduction.
Is there anything specific you prefer moving from the pandas API to polars?