>>1539527
A website is a collage of multiple resources. Each resource has it's own URL, and the URL tells the website where to get the resource from. Clicking that button you are hovering over will copy the URL of the resource, not the URL of the website.

https://puginarug.com/
In picrel I've used the resource tab to find the url of the image
I can then open the image in a separate tab, right click, and then 'save as'.