https://techcrunch.com/2023/04/27/tactile-push-notifications/

If you find smartphone notifications annoying enough already thanks to their skill at exploiting the full range of distraction options available, whether dropping a banner from above or sprinkling pox-like red balls over your homescreen icons so as to lodge like grit in the eye, you should prepare yourself for even less subtle demands bubbling into your eye-line in the future if novel research into flat panel haptics ends up being commercialized by mobile device makers.

Think notifications that create a physical bulge in the screen of your smartphone — making the update icon stick out or even pulse lightly like the proverbial sore thumb until you press with your own digit to remove the unsightly wrinkle.