Overshoots are an unfortunate holdover. In many fonts, "C"s and "O"s are too big and "A"s are too tall. I mean, just look at this:

https://typography.guru/uploads/monthly_2020_01/overshoot.th...

Or this:

https://ilovetypography.com/img/2015/03/Caslon-overshoot-500...

Or this:

https://ktla.com/wp-content/uploads/sites/4/2020/06/GettyIma...

Or this:

https://live.staticflickr.com/5300/5482446696_1fa1ff2b45_b.j...

Hideous.

Try to follow that baseline with your eye. It's a roller coaster of chaos.

Type designers like to add overshoots merely out of habit, not aesthetics. They might have made sense in the lead type era, but simply look like mistakes today.