Audio plugins have a history of ignoring announced changes, and months of betas, and then getting surprised on release day when their plugins just don't work.
I'd be willing to give them the benefit of the doubt in this instance, as 14.4 seems to be a duff release. Haven't seen this many major issues since High Sierra.
I'm currently tracking these 3 for our staff:
https://appleinsider.com/articles/24/03/14/the-macos-sonoma-...
https://appleinsider.com/articles/24/03/16/oracle-advises-us...
https://appleinsider.com/articles/24/03/12/latest-macos-sono...