I usually used InDesign for presentations on PC. Switching to Scribus now that I run a linux only office has been trivial.
Specific to LibreOffice - as an academic I've had to create a couple presentations in ppt format recently. It sucks, but it was a requirement of the conference. Anyway - LO Impress still has many of the annoyances of PowerPoint, but head to head it's actually an objectively better, faster program than PowerPoint.
I’d be grumble to go back to Libre Office which I used for years but it was the company standard. Mostly just use Google Workplace these days. )As does my former employer.) I find Google does a good job of including features most people need 95%+ of the time and does a good job of those.