Does Trump agree with the proposal?
Matter of fact Trump seems to agree with many, but not all the proposals. But in reality, his campaign also has a small in-house policy team, and he tends to broadly discuss the policy on the trail.
Even if he endorsed some proposals that are central to Project 2025, such as giving himself the power to radically expand the number of political appointees in government and also eliminating the Department of Education, he completely disagrees with other proposals, such as putting restrictions on abortion pills.