No conversion from jpg/pnG to webp

Hello! I’ve installed & activated the plugin and converted all the images. There’s no issue while converting. But when I go to my website, it still shows jpg/png images. So now I’m not sure if it converted to webp at all. How do I know if the site will serve webp images for supported browsers?
Please see the screenshot:
https://prnt.sc/1u1gzwu