Folding bikes weight more, take more space and they are less maneuverable. Kick scooters are better if your typical distance is less than 10km, especially if your city has sidewalks, but not bike lanes.
How long does a 10km commute take on a scooter?
50-60 minutes for me.
Ever considered something halfway, like an electric skateboard to save time? Don't you get sweaty after 10k?
I use it as exercise so I don't really want electric as my main transportation mode. I'd like to try one of that boards, but the price is too high.
When it's hot yes, I'm getting sweaty. You can ride slower, but it's less fun for me.