I have used Surface laptops for years and touch is a definite nice-to-have. I especially like having it when diagramming and designing. Paired with the Surface Pen is can really unlock a lot of digital whiteboarding experiences.
Windows benefits from a touchscreen more often on something like a diagram where you'll be panning around up/down/left/right, zooming, etc because the trackpad situation isn't very good.
I've never felt the need for a touchscreen when e.g. using Miro because I can scroll and all directions and zoom intuitively on the Mac's trackpad.
Pen support sounds 10x more useful than touch, particularly when they already have a pen for the iPad.