You can check if an image has alt text by turning on a screen-reader and selecting the picture to hear how it's described. You can also inspect the HTML of the image ...

Alt text is a short written description of an image that describes the appearance, content and/or function of an image. Screen readers read the alt text aloud to website visitors, allowing them to ...

Gary Illyes from Google said that it is "sorta ok" to remove alt attributes from images only when if there is relevant text around the image that helps describe the image. But I wouldn't remove the ...