When you have a website, you have to illustrate it. Most webmasters just pump photos from Google Images. For my part, I used to use an image bank, but also royalty-free photos on different sites like Unsplash.
Graphic designers have known how to remove them since the dawn of time, but if you have no Photoshop skills, there’s a site that uses a little AI to do it properly.
Its name: WatermarkRemover
You upload your image, it cleans it up and that’s it. I know it’s wrong.
Of course, don’t use this cleaned up image on your site afterwards, because you might get the same mail as I did about a few things.