Giant Berry Shortcake

Name: Giant Berry Shortcake
Ingredients: 14 Tbsp. chilled unsalted butter; 4½ cups (563 g) all-purpose flour; 1 cup (200 g) granulated sugar; 2 Tbsp. plus 1 tsp. baking powder; 2 tsp. Diamond Crystal or 1 tsp. Morton kosher salt; 2 large eggs; 2 cups heavy cream; 1 Tbsp. vanilla extract; 2 Tbsp. coarse sugar (such as sanding or raw); 1 tsp. finely grated lemon zest; ¼ cup fresh lemon juice; 2 Tbsp. granulated sugar; 2 Tbsp. strawberry jam; ½ tsp. vanilla extract; ½ tsp. Diamond Crystal or ¼ tsp. Morton kosher salt; 1 lb. fresh strawberries, hulled, quartered (about 2 cups); 6 oz. cream cheese, room temperature; 1½ cups (165 g) powdered sugar; 1 tsp. vanilla extract; 3 cups heavy cream; 12 oz. assorted whole berries (such as blueberries, blackberries, and/or raspberries; about 2 cups); Thin strips of lemon zest (for serving; optional)