Earlier quoted context omitted.
It was/is a very well thought-out format that had a lot of industry signalling they were willing or even enthusiastic about supporting it, which happens virtually never for new image formats. All the major browsers were working on support, many image processing pipelines were being updated. Everyone agreed that it was not just a major improvement, but actually the best option out of all the contenders out there. Even…
A possible reason might be some patents owned by Microsoft: https://www.theregister.com/2022/02/17/microsoft_ans_patent/ That's also a good reason for others to drop support until licensing of these patents is clarified.
Maybe we should stop issuing patents for math problems?