The id3 is electric though

In many cases there’s no extra wear

You can't change physics. More HP = more torque = more wear on the whole drive train. Also more boost = more stress on the turbo = it will fail sooner.

Also, back then, cars with the higher specced variant of the "same" engine almost always had mechanical upgrades compared to the lower specced engine: usually bigger brakes, a stronger clutch, and various other drive train components.

So while in many cases you could chip your car without much immediate harm, you were definitely cutting into various safety margins determined by automotive engineers who know much better than you and me.