A feature is pretty much never as easy as it seems.
I see this all the time. I have probably been guilty of this myself at some point. “I don’t understand why we don’t have this feature yet! It should be just a damn-line of code!!” Baaah!!! “This developer doesn’t listen!” Baaah!! RIOT!!! 😂
As if we knew any better.
But I would ask that you try not to call something easy. The developer of that app will have a pretty good idea of the requirements and the level of effort, and it’s never as simple as it looks on the surface. And they also have a good idea of what needs to happen, for various reasons, before work starts on that feature.