Model
Bookmark
Magento\Ui\Model\ResourceModel\Bookmark
What it does
This resource model handles database operations for UI bookmarks in Magento 2, which store user preferences for grid configurations, filters, and column layouts in the admin panel.
Developers use this indirectly through the Bookmark model to persist and retrieve custom view settings for admin grids.
It maps to the 'ui_bookmark' database table with 'bookmark_id' as the primary key.