You are using a theme. In other words: a website designed in created by somebody else, and made available to you for free. The chance that such a theme has a list of posts on the homepage is high. The chance of that being configurable (within the theme) is low.
However… you should know that Hugo is perfectly capable of showing whatever you like on your homepage. It is an SSG that (without a theme) allows you to create any webpage and any design. This is done by creating a homepage layout (home.html in layouts).
This is a forum where you can get answers on Hugo questions (like: how to create a different layout for home?). If you have a theme related question, you will have a higher chance of getting an answer when you ask that question to the specific theme author.
Hope this helps you ask the right question to the right person!