What would most likely be the outcome of merging multiple image layers into one?

Merging multiple image layers into one effectively combines all the distinct layers into a single layer. This process is significant in image editing because it consolidates various elements that may include different adjustments, effects, and visibility rules into a unified visual entity. Once merged, the separate identities of the original layers are lost, meaning that you can no longer manipulate the individual elements or effects separately.

While merging can sometimes help simplify the editing process by reducing the number of layers that the software needs to manage, it does not inherently enhance the image's quality. Instead, it creates a singular representation of the combined image as it appears at the time of merging. Hence, the outcome of merging is that all image elements become integrated into one cohesive layer.