When I was on BAM's site, I had to select the 2019 Rav4 Hybrid XSE in order for the fitness guide to agree with the part. It also appears that the part is for the project beam type headlight but this top edge should be the same shape.I had actually went back in this same thread and found a picture of someone with them installed from the factory and went off of that. I can post pictures if you need clearer views of it. They just attach with double sided tape. Very easy. Just pull the backing off, align, and press down. They can even be pulled up a little if misaligned slightly. I took some alcohol and just wiped off the top of the headlight to be sure it would attach well. Took all of a couple minutes to get the whole thing done. It even fit perfectly behind the edge of the paint protection film I had installed on the headlights. I think the pattern they used for cutting it was based off of the European version with the gasket since it fit so well.
So the OEM version you installed looks like this with the slits for the curve?