Things like turn photograph into pencil drawing... those are all AI tools.
And of course, doing that with a click is so much easier... and actually worth the time.
Doing it by hand makes it a labor of love... if every you wanted to do it.

And now, they can paint water, waves and such.

But, this really a help when you want to make a particular picture.
But, but, it also means that what we used to consider art, and was painstakingly done, is now a click.