How do I assign PS4 triggers?

I can use the right joystick for the steering of my car with “Input.GetAxis(“Horizontal”)” with analog, but when I use “Input.GetAxis(“Vertical”)” it uses up and down of the right joystick instead of the triggers.

How can I use the triggers of the PS4 controller or any PC controller?

EDIT: Moved post to Unity answers.

Why would vertical ever mean triggers? it’s insane. Read the docs about Input Manager.