Don’t get me wrong. I really value the processing headroom of RAW files, whether they’ve been shot on a phone or a full frame camera, but I’m starting to think the iPhone might be a special case.
HEIC/HEIF image formats
HEIC is Apple's version of HEIF, or High Efficiency Image Format, which could eventually replace the JPEG format with a higher-quality, more space-efficient alternative. A few cameras can now save in HEIF format as an alternative to JPEGs.