Draw the edge of the sticker slowly with a needle until it becomes warped, then clamp the edge of the sticker with tweezers or nail clips, and then tear it slowly. After tearing some, press the home button with your finger to tear it off at one time.
After tearing, apply it with glass cleaner or laptop screen cleaner because there is residual glue on it.
Sticking with the button will shorten the service life of the home button, because after the button is pasted, pressing the home button is stronger than when it is not pasted. If the auxiliary touch is useful, you can paste it.