The important clarification is that Apple's restriction is based on where the device was purchased, not just where it is currently being used.
Apple's official support page explicitly distinguishes between two situations:
- Device purchased in mainland China: Apple Intelligence currently does not work on that device, even if it is later taken abroad.
- Device purchased outside mainland China: Apple Intelligence is restricted when the user is in mainland China and their Apple Account region is also set to mainland China.
What this means for your MacBook Air M2 in Egypt
Since your Mac was purchased in mainland China and you are ‘now using it in Egypt, you fall into the first category. Changing macOS and Siri to US English, changing your Apple Account region to the US, or using the Mac outside China does not officially remove this purchase-region restriction.
Apple does not say that the restriction is permanently hardcoded into the hardware. It is an availability restriction, and Apple could change its policy in the future.
You can check Apple's exact wording here: Apple Intelligence — official Apple Support.
Bottom line: Your M2 chip is capable of running Apple Intelligence, but Apple currently restricts the feature on Macs purchased in mainland China. There is no officially supported settings-based workaround confirmed by Apple.
For China residents
Apple Intelligence features will not currently work for supported devices purchased in China mainland. For supported devices purchased outside of China mainland, Apple Intelligence features will not currently work if you are in China mainland and if your Apple Account Country or Region is also in China mainland.
When Apple Intelligence is available in China mainland, previously-purchased devices that support Apple Intelligence will be able to activate and start using a core set of Apple Intelligence features in that region. New Apple Intelligence features will not be available in China while Apple works through regulatory requirements.