I have a touch screen all-in-one PC for my Centroid Acorn system and TBH, I almost never use the touch function. Worse than that, it seems to get possessed sometimes. I suspect it's an optical touch screen and gets upset by reflections.

Most useful addition to the Acorn system is the wireless MPG. Beyond that, I do most of the other stuff like homing, MDI, loading files, touching off etc using the mouse. The PC is set up on a desk so I can also use Fusion to modify the CAD and CAM, regenerate the g code etc. Modifying and reloading the files is then dead simple. And it's connected to my NAS and hifi, so play music on it of course.

My other machine has a Newker 990MDCa self contained controller. No touch screen or mouse, just tactile key panel and wired MPG. That's a bit of a PITA but makes a neat installation, sort of like a Fanuc clone.

There's a massive thread on maddmodder about the DDCS. No experience myself but it looks pretty handy now. https://madmodder.net/index.php?topic=11598.0