> Note that as these machines have not been released for general availability yet, supported and missing features are predictions based on what Apple has changed on a per-SoC and per-machine basis in the past. This page will change rapidly once work begins on support for these machines.
These machines have been available for quite a while.
The same text is on their M3 page, so at this point you have to assume it really means they haven't gotten to a point where the support page needs updating. Although it would be nice if they updated their page to just say that instead I guess beggars can't be choosers.
The documentation pages are on GitHub, anyone can submit a PR to update this text.