Lockdowns caused by the COVID-19 pandemic in China could lead to future Apple MacBook delays. Some of Cupertino's main suppliers, such as Pegatron and Quanta, have had to cease production for the time being. While future MacBook Air or MacBook Pro releases may be affected, supplies of the iPhone 14 may not be as deeply impacted.
https://www.notebookcheck.net/MacBook-delay-seems-inevitable-as-Apple-suppliers-in-China-go-into-lockdown.613545.0.html