This is quite literally my least favorite UI feature that Android has ever released.
It's slow. It encourages mis-taps. I have intentionally tapped it literally <10 times ever despite using the share dialog thousands of times, since it almost never shows me the desired contacts, and even then I've tapped the wrong contact half the time.
It's incomprehensibly awful, wantonly violates even the most basic user-interaction guidelines of the past few decades, and there's no way to turn it off. What in the world are they thinking / drinking.