Wash, hull, and slice approximately 2 pounds of strawberries. Reserve about 1 cup of the prettiest slices for decoration.
In a large bowl, beat the softened cream cheese until completely smooth and free of lumps.
Gradually add 1/4 cup of powdered sugar and vanilla extract to the cream cheese, continuing to beat until the mixture is silky and light.
In a separate chilled bowl, whip the heavy cream with remaining 1/2 cup powdered sugar until stiff peaks form.
Gently fold the whipped cream into the cream cheese mixture, working in three batches to maintain maximum airiness.
Line the bottom of a 9×13-inch baking dish with a single layer of graham crackers, breaking them as needed to cover the entire surface.
Spread approximately 1/5 of the cream mixture over the crackers, then top with a layer of sliced strawberries.
Repeat these layers (crackers, cream, strawberries) three more times, finishing with a final layer of the cream mixture on top.
Arrange the reserved strawberry slices on top in a decorative pattern.
Cover with plastic wrap (without touching the surface) and refrigerate for at least 6 hours, preferably overnight.