Presets are nothing more than ‘filters’ available for Adobe Lightroom. Lightroom is a professional coloring program for photographers all around the world who use the software to create a certain look for their photos. It’s called coloring for a reason - the program gives you unlimited possibilities of changing any colors in the photo to your liking. These presets are the exact ones I use on my photos and yes, I only use Lightroom not Photoshop to color my photos. Even though both Mobile and Desktop presets are one-click presets, you will need to adjust exposure, contrast and saturation to your liking and or to match the settings of your camera. This is completely normal and the more you grow as a photographer, just like with any other art, you start developing your own look for your photos. If you are still not 100% sure how to tweak the settings, make sure you watch youtube tutorial