pages monterey Form letter

You can make template.

Create a custom template in Pages on Mac - Apple Support

You can use mail mery to fill in some attributes

https://www.macworld.com/article/224773/how-to-create-mail-merge-documents-with-pages-and-numbers.html

Its been over eight years since Apple introduced Pages v5 in Oct 2013. It was not a port of Pages '09, or benefited from that source code pool, being an entirely new application that at that time lacked over 100 features that were in Pages '09. Pages v11.2 on macOS Monterey still does not offer native mail merge features, and the linked Macworld article that IIIaass provided was written in 2015 when that third-party Mail Merge for Pages was first offered from the Mac Automation site.

As the author of that Mail merge solution no longer works for Apple, and may no longer be supporting his Mail Merge side project for Pages, it is a caveat emptor whether it will or will not work with current and future Pages versions. The author of that tool is its sole source of support.

There are features in Pages and MS Word that are incompatible with one another and both applications use a different document layout engine, so it is not a huge leap to perceive that some documents translated from Pages to Word will not appear the same. Apple does not guarantee that translation process and I very much doubt that they are taking pains to keep that translation feature current with new updates of MS Word.

As we are all fellow users, and the Apple product teams do not participate here, I cannot speculate about past or future tense internal Pages product team decisions.

You can let Apple know your requests for improvement via

http://www.apple.com/feedback

The Pages for Mac and Pages for iOS/iPadOS are different applications, with the Mac version being the more fully functional version. Nothing is being downgraded by the product team on the Mac.