No, and neither do any of my quilting friends.
I do prewash Flannel fabrics. They shrink more and not evenly so I do prewash those.
Before a quilt goes out the door I run it thru the washer with 2 or 3 color catchers depending on the colors of the quilt.
Fortunately I have never had a problem. A time or two I have had a fabric leave a little color on my sewing machine, when that has happened, out it goes.