Its not really accurate.
There are 3 sites, the primary r&d all happens in Cupertino, but the second largest r&d is out of Herzliya, Israel, and the third largest is back in California at San Diego.
The architecture is licensed from ARM, so UK there, and production is by TSMC, mostly Taiwain and expanding into Arizona.
As I understand it, the facility in Israel is responsible for architecture design related to components like camera sensor architecture, WiFi, etc. Apple bought Israeli companies to do this.

Actually given that, if you have a weekly with AI as part of it, tagging [AIT] will allow people to filter it out.
Its pretty ancillary to the newsletter itself so its not really required, but just to mention... if it were tagged, any low effort comments like "slop" or similar would then be removed. I don't really see that on your posts in general though, so more a thought for later should it become a problem.