The more likely option than any of these excellent free options is going to be MacOS… just because your average user with even semi-technical inclination does not want to use LibreOffice Present; they want PowerPoint.
I have just seen this first hand with my significant other: they are very technical and more than capable of it, but have zero interest in learning Linux and instead just bought a MacBook on Black Friday specials when their 5 year old HP laptop finally got too annoying to use.
Well, I didn't mention MacOS because it is not installable on the author's win10 computer.
Also, MacOs is as difficult to learn as Linux is for someone who never used it. Resistance to change exist in all directions.
Most people are fine with the web version of Powerpoint.