Hello Kimberlie @Kimberlie!! How great to meet you . I have many clients who request a "softer bite royal icing" along with all other kinds of requests with my cookies (soft cookie vs crunchy and vice versa). As Julia mentioned, I believe a little bit of corn syrup is what causes this type of royal icing texture. However, in my experience it's important to experiment with the amount of corn syrup. Too much can end up being too soft which can greatly affect decorating and packaging your cookies. What I mean is that you can have problems with stamping on a cookie or perhaps even using royal icing with a stencil rather than airbrushing even though the icing is completely dry. Typically, anything where you would need to press down on the cookie just doesn't work as well. I usually use half of the recommended corn syrup when a client requests a soft bite icing. Just a thought... ❤️
Other cookiers may have completely different suggestions based on their own experience .