Now that the storm has passed — I can share an update on screen reader support under Wayland.
As part of STF; GNOME has been working since the end of last year on resolving the matter.
The main issue is that we currently lack a way to “snoop on” or “grab” key events from the compositor.
We now have a draft protocol and implementation in Orca and Mutter thanks to @matt
We are doing our best to get it ready for GNOME 47.
It's part of the bigger Newton project which you can read about here https://blogs.gnome.org/a11y/2024/06/18/update-on-newton-the-wayland-native-accessibility-project/