Hope you are doing good !
I have the same problem as the last person on the support page.
New posts don’t show up on home page, there is also a bug on the category page : https://ramande.com/category/places/
Looking at the website now, I believe you’ve figured out how to set up the home page. Basically, this theme uses the standard WP procedure for setting up the front page to display the latest posts. As for the category page, it looks like it’s working as well.
Please excuse the late reply. And stay safe from Covid.