Will agreeing to preprint increase the hit probability?

no. Because the preprint is usually the author who shares the research results before the official publication, hoping to get more feedback and opinions to improve the research content and conclusions, while the officially published paper will be published after a series of procedures such as peer review and editing, which has higher credibility and academic value. The preprint and the officially published paper should be regarded as equally important academic achievements and will not affect the hit probability.