Welcome to the Quilting Board!

I use the satin stitch for the bed quilts which I make and sell. They are just fine with washing and drying. Using matching colored thread works for me. I usually enlarge the patterns to make it easier to stitch.
Debbie
Machine It
GORGEOUS, applique!
I didn't make this beautiful GFG quilt but it's on my wish list to do
I purchased a Christmas wall hanging at our yearly bazaar done with fusibles and not stitched down. After washing, the little mittens and parts of snowmen were loose or gone, so either don't wash them, or be sure to stitch them down in some fashion.
Nice link from kindleaddict63. The experiment was interesting and helpful. I wish she had done the same experiment with needle turn applique to see how it would hold up. I am nervous sometimes with my needle turn because on intricate shapes, I wonder how durable the points, both out and in will be. Sometimes there is very little turned under and the clipping comes close to the edge. The stitches catch only a couple of threads. Though my fusables with blanket stitch seem very durable to me, they haven't had years of washing and wear.
Genden, my granddaughter is currently using the crib quilt l'd made for her mom! lncredably, this hand appliqued quilt is 35 yr. old, and was even used in a dog bed for a few weeks! The edges are just fine...even though my applique stitches were farther appart than my more recent work. The parts that show wear are certain cottons that have worn through.That's the fabric, not the stitched edges that failed.