Google is big enough to have its own bureaucracy & infighting for this to easily & plausibly happen.
I think AVIF format had a play in this whole ordeal.
It’s a shame too because it takes a lot more resources to encode & can often give results that are too smooth. JPEG XL offers a lot of features from years of other formats like FLIF that never quite made it over the hump. You know you’re making deafened decisions when Facebook+Adobe were on the same side as GIMP+Krita in pleading to get the format back.