Keynote is to PowerPoint as Target is to Walmart
That said, I mostly use Google Slides…because my job.
I look for software that isn’t “death by a thousand cuts”. Small details matter, especially when these small annoyances add up by the hundreds and make the experience tedious.
Making digital things is hard. I know, I do it for a living and don’t always get to polish the edges as much as I want. Most software is good enough, but the best software has a clear advantage and is a delight to use.