What I learned about Design thinking is that there are 5 different stages to it. The first stage is to empathize. What that means is to understand what others want/feel, and if you are intending to sell to customers, then you put yourself in their shoes to see what they would want/what they would feel. The next step is to define. What it means to define in this situation is to define the customer's needs and problems. You see what the customers need to make something easier/faster in their life. The 3rd step is to ideate. What ideate means is that you start thinking of ideas and creating designs for your idea. The fourth step is to prototype. You start creating what you envisioned into a real thing. It can also mean making multiple solutions for just one problem, just in case some ideas don't work out. The last step is to test. See how your customers react to your new invention, and see if they like it or not. And that was the design thinking process step by step.
I got most of my evidence from https://www.interaction-design.org/literature/article/what-is-design-thinking-and-why-is-it-so-popular