"The problem is "bullet points", not PowerPoint." Amen!
Building and presenting a good talk is not easy, whatever tools you use.
Chalk, transparencies, slides, Powerpoint et. al. - done 'em all over the years.
The problem is learning to make a good presentation, not Powerpoint.
Unfortunately Powerpoint makes it very easy to dress up a simple talk
wirh all sorts of ridiculous fonts, bullets, swooping text, music clips and whatnot
that are completely unnecessary and distracting.
It doesn't have to be dull (in fact it shouldn't be) but informative and (a little) entertaining.
Powerpoint (or LibreOffice Presentation or Keynote) are very powerful tools for
conveying information. Unfortunately they are usually very badly used.