I disagree. Since Covid pushed us into WFH, the number of slide decks I am subject to is trending downwards. Most of my presentations these days happen in Miro, or Notion, or over a screen share of whatever we’re doing. There’s still the odd PowerPoint but they do have their uses as much as I dislike them.
Users: Sure, use whatever presentation you want - just make sure it can be shown on a 2-dimensional screen, which the lingua franca of presentations.