This conversation has been merged. Please reference the main conversation: Photoshop: Please Provide Support for the WebP Image format
JPEG 2000 is available at Save As, I don't get why is messing in Export.
If you look here https://community.adobe.com/t5/Photoshop/Converting-images-to-WEBP-in-photoshop-cc/td-p/10281336#sa_src=web-messaging you had 24600 views for just one post about this, meaning that a lot of people are looking.
I think a voting system should be implemented so you can drive new features by the number of people that ask for them. Please add a voting system.