Google now includes in their mobile search results an image for some pages (this is in addition to now including the favicon for every site). Google mostly uses the image specified by the open graph tag (although not always).
Are there any guidelines for how Google selects the image and is there a way to let Google know when the image has been updated (similar to Facebook’s Sharing Debugger that will re-scrape a website on request)?
Google shrinks the image they select to 104px by 104px, which doesn’t work well with Facebook (and LinkedIn) that likes a 1.91 to 1 image ration, so it would be nice to request Google to use a different image (the way WhatsApp uses the last op:image listed on the page).
I've included a screen capture showing how an image is included in the search results.