Today’s popular image formats – JPEG, GIF and PNG – were developed in the 80s and 90s when there was no mobile or app traffic, let alone responsive web design or 4K HDR screens.

Other image-coding formats that AVIF is competing with include the Google-developed WebP format, which is supported on Android, Firefox, Microsoft Edge, and of course Google Chrome.

The "developer" branding on the image means it's not fully functional, but it will be good enough for app testing. The reason for Google's one-way Android 13 update is a bootloader vulnerability.