I have also seen a lot of people address that majority of these points in their pitch deck. E.g. they will often have the hiring plan, product roadmap, market

I have also seen a lot of people address that majority of these points in their pitch deck. E.g. they will often have the hiring plan, product roadmap, market structure, proposed business model etc. in the deck. Some of the details will often be in the appendix etc. I agree with your meta-point - writing this down in whatever form goes a long way to forcing you to think it through, and can lead to some useful insights to you are the driver of the company.