Hi, if I do a lossless optimization of a jpeg image using this open source tool on Windows, and then open it in Photoshop 24.0.0, the jpeg looks all corrupted.
It looks all right in all browsers (FF, Chrome, IE) and image viewers I have. If I upload it to my wordpress site, a plugin converts it to webp, avif and different thumbnail sizes without problems.
If I'm correct, the tool just uses well-known open source command line tools and libraries to compress images, like ones popular on *nix servers to bulk compress images. So it might not be limited to this specific tool.
Left original jpg opened in PS, right the optizimed one.