1. Navigate to iOS / iPadOS Settings and scroll down to "Camera"
  2. Tap on "Formats"
  3. Tap on "Most Compatible" to save new photos and videos as JPG or H.264. Tap on "High Efficiency" to save photos and videos as HEIF or HEVC
  4. Please note that 4K quality (if applicable to your device) requires High Efficiency to be active.