It would be lovely, but considering most website aren't even accessible to visually impaired users, I wouldn't expect a consensus on something like this in the next decade.
The beauty of decentralisation can also lead to rather long wait times for new standards to establish themselves.
Proper semantic HTML with aria tags (which are easily checked using tools like lighthouse, and actually factor into Google SEO ranking now) work great with screen readers.
That is correct, but a lot of websites still use poorly implemented elements like carousels which cause screen readers to start at the beginning every couple of seconds, for example.
It took meeting a blind developer at work for me to realize how bad parts of the web still are for the visually impaired. And many of the barriers are prevented simply by putting some thought into accessibility in the planning stage.
The beauty of decentralisation can also lead to rather long wait times for new standards to establish themselves.