In a large bowl, gently combine the strawberries, blackberries, raspberries, and blueberries.
Add the lemon juice and lemon zest. Toss gently to coat. Set aside.
In a medium mixing bowl, beat the softened cream cheese with a hand mixer until smooth and creamy.
Add the powdered sugar, brown sugar, and vanilla extract. Beat until well combined and fluffy.
Fold in the Cool Whip gently until the mixture is smooth and fully incorporated.
Add the cheesecake mixture to the bowl of berries.
Gently fold everything together until the fruit is evenly coated. Be careful not to crush the berries.
Refrigerate for at least 30 minutes before serving to let the flavors meld.
Serve chilled. Garnish with a few extra berries, shredded coconut, or even granola.