One of my more favorite professors would provide his slides, they were typically quite minimalist, and also provide the 2-3page long bullet-points of lecture notes that he would use to fill in the slides. The key thing here was he would post the lecture notes after the actual lecture, so you get the active learning from writing notes during the lecture with a searchable, easily savable/transportable copy of the actual content
That's what I do currently. My slides are very sparse, but on the screen of my laptop I have my notes about what's going on at that point in the lecture. Once the lecture's done I upload the whole shebang (double-wide PDF pages with the slide on one side and my notes on the other) for the students to read afterwards.