Cubic Bézier curves are mentioned in the following post, which is the one to which Bhikkhu Pesala links using the phrase “you might find this post interesting”.
In relation to cubic Bézier curves, a program which appears to use them is Microsoft Paint. Microsoft Paint is bundled in with many (all?) versions of Windows.
Readers who might like to try experimenting with drawing using cubic Bézier curves using Microsoft Paint might find the following web article which I wrote in 2002 of interest.