Hello Abhishek. I know I can make just one single template in SP Page Builder. What I want to know is that if there is an option to choose such template for all product or categories without having to go to each category and select the template. Maybe an option that says apply this SP Page Builder template to all categories in one step.
In sp page builder you will make just 1 single product template and attach it to all product categories. all products of that category will use same template. You do not need to create template for every product.