There are managers on the floor who refuse to help you when you need questions answered.
If they find out you are looking for a new job they will find a way to fire you before you put in your two weeks- this is what happened to me.
Managers will find reasons to fire you if you stand up for yourself and ask questions on why a process is done a specific way - happened to my coworker.
Do you remember the movie Mean Girls? This place is exaxtly like Mean Girls.
If someone on the leadership team doesn't like you they will find ways to hound you in your work to make your life complete hell.
You can get in trouble for asking questions when you are unsure of a procedure and don't want to make an error.
If management's doesn't like how you explained something in an email or on your notes they will call you a liar and belittle you.