Photoshop 2020 original: access to patterns files

Hi all. Could someone help me? I´m new in this. 

I bought a Photoshop 2020 license, running on Windows. As I want to access to Patterns, the only one installed is one full of leaves. At the fill or adjustment layer/ pattern/ fill, I find only leaves, thought it has 3 options: water, trees, .... There are no files or images. Some colleagues with 2019 version access to different textures, materials or gouaches files. How could I access to those files? 

There is an image of my screen attached.

Thanks

Regards

Monica