Code spotted by a developer in Google Camera app shows that Google is working to bring wide color gamut image capture to the Pixel 4. Although Google is considered to hold a lead over the iPhone in still image capture, the iPhone can capture images with a wider color gamut - Google is looking to nullify that edge.
https://www.notebookcheck.net/New-code-points-to-Pixel-4-supporting-wide-color-gamut-photos.426088.0.html