Apple pulls the plug on user-found method to sideload iOS apps on Mac - Ars Technica

Late last year, Apple launched its first Macs running on its own ARM-based custom CPU called the M1, as opposed to the Intel chips that have been used in Macs for several years.

However, many developers did opt out for any number of reasons: because they did not feel the app provided a good user experience on laptops or desktops; because they offer preferred alternative ways to access services or content on Macs; because they don't have the time to support an additional platform; or any number of other reasons.

But a couple of months ago, a Reddit user shared a way of sideloading those apps on M1 Macs by fetching the app's IPA file from a connected iOS or iPadOS device using third-party software, like iMazing, for Macs.

The change already affects Macs running macOS Big Sur 11.1, and it also applies to Macs running the 11.2 beta.

There are a number of reasons Apple may have introduced this change.

Further, Apple and developers may feel that these applications provide a poor user experience on macOS, and they could be a support or security headache.