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The reality, though, is that the iPhone OS is already capable of multitasking, technically speaking. Certain apps and functions already multitask. You can switch to email or calendar while a voice call is still connected in the background. You can listen to music from the iPod function while continuing to use other apps on the iPhone. The multitasking is there; Apple has just restricted which apps actually have access to it.
This was a 12 years old article, but 12 years later there is still someone like you believe IOS or ipadOS is really designed to run one app only, lol xd.