The slideshows I use in my classroom and those that I use for conference keynotes include some interactive components. I do this in my classroom as a means to quickly gauge my students’ understanding of the lesson. There are a few tools that make this easy to do. In all cases students response to the questions on their laptops, tablets, or phones.
https://practicaledtech.com/2019/11/04/easy-ways-to-add-polls-quizzes-to-existing-slideshows/