Hello taylor_r, I completely understand your frustration. Transitioning to an air fryer can sometimes have a steep learning curve, but once you adjust a few parameters, you will get those golden, crispy fries you are looking for.
First, overcrowding the basket is the most common culprit. When frozen fries are piled on top of each other, they trap steam, which boils them instead of roasting them. Try cooking them in a single layer, even if it means doing two separate batches.
Second, make sure you shake or toss the basket halfway through the cooking time. This redistributes the fries and ensures even exposure to the circulating heat. You can also lightly spray them with a high-smoke-point oil like canola or avocado oil to help mimic the traditional frying texture.