Yes, needing to make CON checks for taking chip damage is normal. I was pointing out that because there are many additional sources of chip damage in BG 3 compared to pan and paper, that increases the number of CON checks you need to make. The more checks you make, the greater the chance you fail them.
I am aware, but the OP is asking to change how concentration works as a mechanic which is a counterintuitive suggestion for the reasons I outlined.