I'm a screen reader user, and am extremely sad to notice today that on a page presenting questions, questions are no longer inside an heading tag
Example of such a page with the tag accessibility: https://stackoverflow.com/tags/a11y
That's extremely sad because such headings allow to navigate very quickly through questions using the navigate by heading feature of my screen reader. Using this technique, I can be very efficient choosing what to open and what to skip. This, whether when searching for a problem, or to find questions to answer to.
With the new layout, I'm obliged to go through the page with arrow keys or many gestures, which is much less efficient. This is a major step down in the accessibility of Stack Exchange.
Due to that change, I would judge its accessibility / screen reader usability ranking suddenly going down from "quite good (6/10)" to "pretty bad" (2/10).
I'm probably going to visit Stack Overflow much less often if headings aren't back soon.
I'm currently using Google Chrome on Windows 10, screen reader Jaws 2022