The issue is that 1-2% of users of a random service might use screen readers. As an industry we’ve agreed that it often makes sense to drop support for browsers

The issue is that 1-2% of users of a random service might use screen readers. As an industry we’ve agreed that it often makes sense to drop support for browsers with more market share. Every screen reader is going to have an order of magnitude smaller user base than the browsers we’ve decided to stop supporting. “No one” is going to do meaningful cross-reader testing. The only reason “anyone” does any accessibility work at all is the law (and thank god for it).