01. Try to use the theme template library and import the section from the theme library.
https://xtemos.com/docs-topic/templates-library/
>>>I tried through the template library but couldn’t find many of the sections I saw on prebuilt sites…why that is I really don’t know!

02. Navigate to Theme Settings > Typography > Advanced > Choose the Product Grid title from drop down and change the typography settings.
https://ibb.co/G9tz7p8
>>>This was helpful