Pet Peeve with character introductions in Screenplays

A rant on screenplays:

Hi. Been a minute. Much to discuss. Let’s get right into it. Because I am dying to rant about one of my biggest pet peeves in screenwriting: weak character introductions.

What defines weak?

Many things, but most importantly, you want to distinguish your major characters from one another.

They should not be stacked on top of each other, sharing scenes.