Where WebP still causes trouble
Every current browser shows WebP, and Windows 11 and macOS open it natively. The friction is elsewhere: online print services, many job and government upload portals, older copies of Microsoft Office and Photoshop (before version 23.2), some email clients, and most digital photo frames. JPG works in all of them.
Picking a quality setting
The slider runs from 40 to 100 and starts at 85, which is a good balance for photos. For printing, use 92 to 95. Going to 100 roughly doubles the file size for a difference you won’t see. Remember that the WebP was already compressed once, so a very low setting stacks a second round of artefacts on top of the first.
Transparent WebP files
JPG has no transparency. Logos and cut-outs saved as WebP will get a white background when converted to JPG. If you need to keep the transparent areas, use WebP to PNG instead.
Questions
What about animated WebP?
JPG can only hold one frame, so you get the first frame of the animation.
Can I make Chrome save images as JPG directly?
Not reliably. The site decides which format to send, and browsers save what they receive. Converting afterwards is the dependable route.