Mostly it depends what mood I am in I guess. I do use the double buttonhole stitch with rayon thread on most of my fusible machine appliqué, or a satin stitch if it’s going to be washed frequently. I have tried and played with all the stitches by making samples when I first got the machine.
I also enjoy using the Serpentine stitch and adjust the widths/lengths until it works for me. I have used the lettering for labels but actually prefer to handwrite mine with Pigma pen for a more personal feel.
I do like options though 😀