Is my central controlled residential ventilation working correctly?

There are usually defined limits for the indoor and outdoor temperature. These usually have a delta of 2-3 degrees so that it doesn't open and close every 20 minutes. I think your 24° indoor is still too low, it will probably be around 26-27°.

Thank you for the previous answers. : that sounds logical, thank you.

Yes, that usually works like this. But as I already wrote at the beginning, it depends on how the programming (setting) looks.

Mine, for example, runs with the override of the hysteresis in summer.