Need help with horizontal recent posts gallery on different categories

Hi and thanks for reading this post, i am trying to create a sort of tab-slider on my site which it's function will be individual for every primary category, what I am really saying is I want to create something like that section within footer, that recent posts gallery-slider from Here
I have tried many things but I really don't know where and what to write ( Wordpress- Lifestyle Child Theme ) i only want to appear on categories and not on homepage too.

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