Is it best to build as many product as possible or focus on one product and ask customers?

In my opinion and experience it's better to just focus on one. Too many things at the same time can be distracting.

Focus on one product, listen to customers, and iterate based on their feedback. Building too many products spreads your resources thin and hinders quality.

I would say focus on one product with perhaps different features. It's not just about a product itself in my opinion, it's also about passion and identifying with the product.