What does this module solve?
By default, Odoo sends the images unchanged in the formats in which they are uploaded. And pictures take up a lot of space and slow down the website
According to the HTTP Archive, images on average occupy up to 64% of a web page
Considering this, image optimization is an extremely important aspect, especially considering that many users will simply leave the site if it does not load in a few seconds.
The main reason why we started implementing WebP is to reduce the file size. According to Google: WebP compresses lossless images 26% better than PNG. WebP compresses lossy images better than JPEG by 25-34% with the same Structural Similarity Index (SSIM) . WebP supports lossless transparency (known as alpha channel) with a size increase of only 22%.
Behavior after install
All images used by odoo at web/image are converted to webp, which reduces their size. And your site works much faster.