WebP maxes at 8-bit per channel. For HDR, you really need 10- or 12-bit. WebP is amazing. But if I were going to label something "state of the art" I would go

WebP maxes at 8-bit per channel. For HDR, you really need 10- or 12-bit. WebP is amazing. But if I were going to label something "state of the art" I would go with JPEGXL :)