Are you just hanging around California startups? I work in big consulting and am inside hundreds of the largest companies in the US, everyone of which is fully Microsoft and only ever seen PowerPoint. I’m in dozens of teams meetings a week across as many organizations and have been in 2 Google meets meeting in the last decade, both of which were California fintech startups.

Every single morning on the train to work, I watch people put finishing touches on PowerPoint presentations.

I've worked in academia for years (in computer vision labs) and I can confidently say that PowerPoint is the best tool to prepare research presentations.

I continue to be impressed as to how much of a bubble HN people reside in. A very small bubble.