Currently, Ubuntu 22.10 version is in the beta phase, a new commit appeared in the bug submission about the WebP image format. According to the description, Ubuntu 22.10 version will support the WebP format by default. WebP images can be viewed on the GNOME desktop and in the system’s own image viewer without the need to install third-party software.
WebP is an image file format developed by Google intended as a replacement for JPEG, PNG, and GIF file formats. It supports both lossy and lossless compression, as well as animation and alpha transparency.
At present, the WebP format is mainly used on websites, and all major browsers already support the WebP format. The image viewer that comes with Windows 10/11 also supports the WebP format.
WebP is not currently supported in Ubuntu 22.04 LTS release.