Absolutely this.
The speed in which you can develop in Python is one of its greatest strengths. Combine that with the best third-party libraries and you're set.
If something needs speed, drop that down into Rust or even C.
I actually might lose credibility for this one, but I don't think startups should be using Rust, Zig, etc. unless the technical advantages are critical or even inherent to the product.
Like, if Python, JS, etc. are even options, you should probably be using Python or JS!