> In lossy mode I think there is no difference between AVIF, HEIC or JXL. AVIF is even a little bit ahead.

AVIF is definitely not ahead for the high quality levels you'd use in photography. AVIF is ahead at lower quality levels.

> For lossless mode, JXL's fast modes (-e1 and -e2) are fast. But their compression ratio is terrible.

JXL lossless e1 is still a lot better than the lossless compression people tend to use for photos these days. Like Apple has been using Lossless JPEG, which sucks.