EDIT: See post #14 for details of the bug reports.
For those who don't know, AVIF is the upcoming new image and video format, so efficient that Netflix uses it on supported devices.
But.
Ubuntu seems to have a major problem supporting AVIF.
The newest version of GIMP on Flatpak (but not Snap, for some reason) supports AVIF.
But I want an image viewer that supports AVIF! I have tried so many different viewers without success.
According to Ubuntu Handbook and OMG Ubuntu, gThumb version 3.11.4 and higher supports AVIF. Well, I've installed gThumb 3.12 (from Flatpak), and it doesn't.
Am I perhaps missing a library? What can I do to get an AVIF viewer?
Thanks
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