Trump's attitude towards NATO member state spend it widely publicized [0] so I don't think there's much to debate here. Trump wanted member states to spend more, not less.
He was somewhat prescient during his 45th presidency, given what happened in Ukraine in 2022 and how it forced US to spend huge amounts of money and military hardware which the EU simply didn't have. Maybe with a stronger standing EU army, that invasion would not have happened in the first place.
[0] https://www.tandfonline.com/doi/abs/10.1080/01495933.2021.19...