Level 2

When creating a website using WordPress, I want to reorganize the order in which the content is displayed on the homepage: the product categories are displayed first, and then the corresponding posts are displayed under each category in turn.

In other words, when a user opens the homepage, the first thing they see is the list of categories, and only when they scroll down the page will they see the posts under each category. Currently I have not found a suitable plugin or CSS code to implement this layout. Is there any recommended plugin, code or other solution that can help me achieve this effect?