An investigation has shown that iPadOS 16 has an internal mode that allows Apple to test the multitasking feature on iPad that don't have an M1 chip.

The code found by 9to5Mac references an internal setting that allows "Chamois" for "Legacy Devices", or in other words, iPad models without the M1 processor that Apple deems is necessary to deliver an " instantaneously responsive " experience.

Craig Federighi, Apple's head of software engineering, said in an interview with Forbes that non-M1 iPad couldn't deliver the Stage Manager experience that Apple was aiming for.

"We began some of our prototyping involving those systems and it became apparent early on that we couldn't deliver the experience that that we were designing toward with them," he said. "Certainly, we would love to bring any new experience to every device we can, but we also don't want to hold back the definition of a new experience and not create the best foundation for the future in that experience. And we really could only do that by building on the M1."

Apple stated that Stage Manager requires large internal memory, incredibly fast storage, and flexible external display I/O, all of which are delivered by iPad with the M1 chip.

Stage Manager allows users to change the size of iPadAPPS into windows. Users can use up to four apps on the iPad and up to four on the external display at the same time.

Some users wonder why Apple doesn't allow Stage Manager to work on older devices by limiting the number of apps that can be used at the same time. Stage Manager is included in macOS Ventura, which is compatible with Intel Macs that were released as early as 2017).