I usually have one big file with a bunch of Frames (artboards/canvas) and maybe some Components from the Team Library dropped in too. Figma is so much more performant than Sketch that it doesn’t really slow down unless you’re dropping large image files in too, and only when the file first opens. Haven’t missed having Pages since I started using Figma.
You could export your slides from Figma as images, PNG or JPEG, and then combine into one document and export as a PDF using Preview, Acrobat, Keynote, PowerPoint, or Google Slides.
I’ve written more about presentations and Figma, if you’re interested:
The key differences between Figma and Sketch for this use case: (1) Figma is collaborative, so you and your team can edit a presentation with a Google Slides-like experience (e.g., commenting, simultaneous editing); (2) If you show up to a speaking engagement with a Keynote file or Sketch file and the venue runs…