Clearly with just the garage door up you will get better airflow.
However given the incidence of critters human and animal I would not suggest leaving the overhead garage door up for very long.
So we purchased an overhead screen door from Thumper to provide light and better airflow.
Thumper has been very very good to us
Honest guy and we like his product
I am glad you asked because like all matters in life things change and what was once good may in fact have worsen. so a repeat of the some of the same topics is beneficial. This is one of them
Personal Best Regards: