The teammate doing quiet preparation should not be overlooked because they do not narrate it.

Visible work gets credited and invisible work gets assumed. The person who read the document properly, checked the numbers, and made sure the room had what it needed does not usually mention any of it, so the meeting appears to have gone well on its own. Meanwhile whoever spoke most is remembered as having driven it. This is not dishonesty, it is simply what a room can see.

Before the next thing closes, ask who made it easier and name them where it counts, with the specific thing they did. Say it in front of the people whose opinion affects them.