After some thinking I had the idea that now showing the DC, including not showing it when you roll, might be good to fight save scumming.
You try something and the game tells you if you succeed or fail.
You do not know if you rolled a 1 when a 2 would have been enough or if it is almost impossible because the DC is super high.
Maybe this could be an optional "immersive mode". In the real world you do not know your exact chances of success if you try something. You can guess that some things are harder than others, but your guesses can be wrong.
This might include not showing % values.
This would be my preference, but I might take it a step further and not even tell the player if they succeed or fail - just show you through the result.
