wide-angle lens

Has anybody used this wide angle adapter for the Mavic 3 Pro? I am most interested in how it compares to the one for the Mavic 3. I have that one and it is pretty good but has a lot of distortion. That can be taken out fairly well in Lightroom but it changes it from a 16mm equivalent to a...

I've seen talk where some people were getting this message where they had an ND filter attached, but I actually have a DJI wide-angle lens attached, and I'm NOT getting the message. Does anyone know why that would be or if it matters?