Personally always prefer the digital menu, at least the good ones with pictures of the food and that you can zoom in on. And you just know that very few places regularly clean their physical menus
Certainly more often than many menus I have seen. Modern water resistant devices make it easy to just use soap and water. And if it is gross, at least it's my fault and I can do something about it on my own time (I probably wouldn't take a restaurant manu to the bathroom to wash it before I look at it).
Yeah standard soap you would wash your hands with. Haven't had any problems for many years, and can't think of why I would 🤷. Smells nice too, definitely better than alcohol wipes