That's right! Image2WebP can reduce image sizes by up to 80% without a noticeable drop in quality, which can significantly improve your website or blog's loading speed. As far as I remember, Google considers page loading speed to be an important factor for SEO rankings.
This isn't exactly a new technology; I'm just converting images to the WebP format. You can check browser support for WebP here: https://caniuse.com/?search=webp.