@Jain Implementing too many codecs at once can get messy, which is why a new video-based codec every couple of years is an unfortunate sight to see, in my opinion. Especially considering WebP's failure (except the lossless part).
The AVIF spec was actually submitted as a proposal for JXL, but was rejected. That should have been the sign to relinquish AVIF development, if implementing things "together in a random order" is bad for the Web since it was known it would overlap with JXL which was always supposed to be a superset of AVIF or something better.
Regarding interest from professional use cases, I've seen JPEG XL discussed for these use cases in the JXL Discord. The JPEG XL project itself touts features like wide dynamic range support, layers, excellent lossless compression, and an incredible number of possible channels. Aside from HDR, the above are missing from AVIF. So, while adoption is still early, there is excitement about having a modern codec that can handle specialized needs beyond what JPEG and PNG currently offer. More info on JXL: https://wiki.x266.mov/docs/images/JXL
HEIC is not supported pretty much at all on the Web due to licensing restrictions, which make it very difficult to ship HEIC images. I would say AVIF has the most momentum now, even moreso than HEIC, but JPEG-XL and other future formats could gain traction once native browser support spreads.