The TinyImage image conversion setting allows you to convert images to either Google’s WebP format, the AVIF (AV1) format, the Progressive JPEG format, or the Tiny 1.2 SVG format.

Adding PNG and JPG fallbacks for WebP or AVIF conversions. By default, converting your JPG and PNG images to WebP or AVIF will automatically substitute the original formats in your export. If you’d like to convert your images to WebP or AVIF and also include compressed versions of the original JPG and PNG formats in your export, you can enable the Include PNG/JPG fallbacks toggle.