FrontSpecialPrice
Magento\Catalog\Model\Product\Type\FrontSpecialPrice
What it does
This class handles the calculation and application of special prices for products on the storefront in Magento 2.
It retrieves special prices from the database, validates them against store scope and date ranges, and applies the lowest applicable special price to products.
Note that this class is deprecated as of version 103.0.2 and developers should use the standard Price model instead.