I don’t find it appreciably easier physically to walking-foot quilt on my domestic than FMQ. My machine has a large throat space, and I have a sewsteady table for it, but I still find myself wrestling with a large quilt.
I do prefer to straight line quilt at times though, for the mindlessness of it. I easily get overwhelmed from all the decisions that have to be made when FMQ’ing, and fatigue sets in quickly. Sometimes I just want to get the thing finished, and then straight lines are the way to go!