In the attached photo, you can see that the component has 3 pads that are GND, as is the surrounding polygon.
To be soldered correctly, these pads need to have a ring around them and only be connected to the polygon with a couple of spokes. In KiCad, which I am used to, the parameters of these spokes is defined as a property at the polygon level.
(In the screenshot I have also attempted, and failed, to create a thick trace for the antenna transmission line by using a polygon, instead of a trace where it's hard for me to control how the rounded ends are laid out. As you can see I have failed. Will play a little more to see if I have done anything wrong.)