Cover glass for 5D4 touch-screen?

Dear Friends: I sometimes bang around my gear a bit harder than I would like, and it has been my custom always to keep a high-quality multilayer cover-glass affixed to the rear LCD -- a cover-glass of the Giotto or Vello sort, though not always those brands. This has worked out extremely well.
Does anyone have reliable experience and/or authoritative literature on such covers for the touch-screen 5D4?
Thank you for your time and advice.