How to Install Presets in Lightroom Classic
All presets, profiles, and tools are compatible with Lightroom Classic version 13+ and Lightroom (CC) version 7+.
Lightroom Classic is a desktop-only application with no free version available. It operates independently from the mobile app, and presets must be installed separately in Lightroom Classic and Mobile App.
HOW TO INSTALL GENERAL PRESETS, ADJUSTMENT PRESETS, AI MASK PRESETS, GRADIENT MASK PRESETS & PROFILES
Step 1. Download your Lightroom Toolkit from the link sent to your email. All the files will come in a single .zip folder. Unzip the main folder, where you will find .zip files with names of all the products you've purchased. Don't unzip the individual files.
Step 2. Navigate to the Develop Module in Lightroom and click on File>Import Develop Profiles and Presets.

Step 3. Navigate to the files that you’ve downloaded. Select the zipped files and click Import. You’re done!

HOW TO INSTALL BRUSH PRESETS
Step 1 - Install Presets and Profiles Before Installing Brushes
Follow the Instructions to Install Your Presets Before Installing Your Brushes.
Step 2 - Unzip the Brush Presets Folder
Unzip the folder with brush presets, where you will find individual .lrtemplate files.
Step 3 - Open Lightroom and Navigate to Preferences
On a PC go to Edit and select Preferences from the drop-down menu.
On a Mac go to Lightroom and select Preferences from the drop-down menu.

This will open a new window. There, go to the Presets tab, where you will see a checkbox labeled “Store presets with this catalog”. Make sure this is unchecked.
Next, click on the “Show All Other Lightroom Presets” button. That will open Adobe folders on your computer.

Navigate to the “Local Adjustment Presets” folder.

Step 4 - Paste in the Brush Presets
Copy the Brush Presets (.lrtemplate files) from the location you downloaded them to your computer and paste them into the “Local Adjustment Presets” folder.
Step 4 - Restart Lightroom
Now, completely close Lightroom. When you re-open Lightroom your Brush Presets will be installed.