@aral @marjon @nachtfunke A11ySupport is an amazing resource, but largely maintained by one person (so not always as current as the rapid pace of browser releases).
With Google’s Baseline completely excluding accessibility support (https://adrianroselli.com/2023/12/baseline-does-not-really-cover-baseline-support.html), I have been trying to get it to commit to throwing some resources at A11ySupport (https://github.com/web-platform-dx/web-features/issues/498#issuecomment-1878781911) to cover that gap.
If you have any levers to pull to make that happen… well, we could all benefit.