Those reasons, lifted from the wasteland of the bug linked: - Experimental flags and code should not remain indefinitely - There is not enough interest from t

Those reasons, lifted from the wasteland of the bug linked: - Experimental flags and code should not remain indefinitely - There is not enough interest from the entire ecosystem to continue experimenting with JPEG XL - The new image format does not bring sufficient incremental benefits over existing formats to warrant enabling it by default - By removing the flag and the code in M110, it reduces the maintenance burden and allows us to focus on improving existing formats in Chrome