For alcantara, damp but wrung out microfiber cloth and a couple sprays of Griots interior cleaner. Agitate surface with a horsehair brush if there is embedded dirt and grim.
Fake leather. Griots interior cleaner and detailer.
Actual leather. Interior cleaner and leather 3in1 spray.
I like Griots stuff because it smells mostly natural or extremely lightly scented. It leaves a matte or natural finish. And you can buy it in gallons to refill.
But there are many other detailing liquids out there. Adam’s is my other go to company.
I just tried this product from Car Guys on my friend’s interior cyber beast and it did very well with dust and some scuff marks from normal use. Didn’t change color or texture from what I saw. https://amzn.to/3xG9lHk