Preheat oven to 350°F (175°C). Line a 9x13-inch baking dish with parchment paper.
In a medium bowl, combine crushed pretzels, melted butter, and 1/4 cup granulated sugar. Press mixture firmly into the bottom of the prepared pan. Bake for 8–10 minutes until lightly golden. Let cool completely.
In a large bowl, beat cream cheese until smooth. Gradually add powdered sugar and vanilla; mix until fluffy. In a separate bowl, whip cold heavy cream until stiff peaks form. Gently fold whipped cream into the cream cheese mixture until fully combined.
Spread the cheesecake mixture evenly over the cooled pretzel crust.
In a bowl, toss sliced strawberries with 1/4 cup granulated sugar. Let sit for 15–20 minutes until juices release.
Spoon strawberries and their syrup over the cheesecake layer. Cover and refrigerate for at least 4 hours or up to 2 days.
Just before serving, whip cold heavy cream with 1 tablespoon powdered sugar until soft peaks form. Spread or pipe whipped cream over the top of the salad.
Notes
Best served chilled. Can be made ahead and stored in the refrigerator for up to 2 days.