If you use Microsoft Edge, you get a camera icon when you hover your mouse over any image:
This is a great tool for users as it allows them to do a visual search in a sidebar for that image.
During local development, the icon appears on images, too, but the results don't show up. That means it interferes with your design and doesn't work.
If you hover longer over the icon, you can access an overflow menu …
which allows you to hide the icon for this site, to always hide it, to go to the settings and to give feedback.
You can also go to the browser settings edge://settings/appearance/visualSearch to add sites you don't want to see visual search by hand.