Soften the cream cheese: leave it at room temperature about 30 minutes or microwave in 5–10 second bursts until slightly soft but not melted.
In a large bowl, beat the softened cream cheese with the sugar and vanilla until completely smooth and lump-free.
Gently fold in the whipped topping with a spatula until evenly combined and fluffy.
Add the mixed fruit to the bowl and fold gently until all fruit pieces are coated with the cheesecake mixture. Stop before fruit starts releasing too much juice.
Transfer to a large serving bowl or scoop into individual bowls.
Sprinkle graham cracker crumbs over the top just before serving to keep them crisp.
Notes
Store the salad in an airtight container in the fridge for up to 3–4 days. Keep graham cracker crumbs separate and add them just before serving. Avoid freezing, as the whipped topping and cream cheese will separate.