Magento 2: addFieldToFilter Collection with OR condition
Specify the table when adding field to filter for the collection Eav/Model/ResourceModel/Entity/Attribute/Option/Collection.php · Issue #14572 · magento/magento2 · GitHub
Magento 2 Admin Product Grid with Category Extension - Filter Product by Category
How to Add a Custom Filter to the Product Grid in Magento 2?
How to Add Custom Filter to the Magento 2 Admin Module Grid | Inline Edit
How to Filter Products by Category in Magento 2 Admin? - Magefan