The first thing that all students and teachers should know about Google Images is that it’s an image search engine, it is not a host of the images that it displays. Second, by default, Google Images serves up results from any website that hosts an image that matches your search term (sometimes it’s a very loose match). Third, while you can use the filters in Google Images to refine results to only Creative Commons licensed images, you still need to click through to the image source to verify whether or not you can actually use the image.
https://practicaledtech.com/2022/12/06/a-short-guide-to-using-pictures-from-the-web/