SERP

A modern SERP is assembled from features: ads, an AI Overview, the map pack, People Also Ask, featured snippets, images, video, shopping results and finally the organic list.

This matters for planning, because ranking first organically means something different on every query. On a query dominated by an AI Overview and a map pack, first organic may sit below the fold and receive a fraction of the clicks a flat SERP would send.

Any keyword worth targeting should be looked at before it is chosen. What the SERP already looks like tells you what winning it would actually be worth.