Though this product is designed to work with the asset browser which comes with any Blender version over 3.xx, it the models inside the .blend file should also happily work with older versions.

Just drop the downloaded “Japanese Bridges and Gates.blend” file into your asset browser folder and the models will be ready to drop into your scene. To check and change the asset browser folder path, in Blender, go to Edit > Preferences > File Paths > Asset Libraries.