Even in tabletop that is EXTREMELY DM dependent. Many DMs will, in fact, either straight up tell you the DC of a check before hand or at least contextually "very easy" (5), "easy" (10), etc. That said, having it optional to hide DCs is a good suggestion.
I've personally never known any DMs who tell players the DC they're rolling against for ability checks, outside of combat where there is a need to streamline. Atmospherics and scene setting are often used to indicate to players in hinting ways how hard what they're attempting may be, but never outright telling them.
There's a difference between a DM saying, mid combat "You've seen enough at this point that you know her AC is 21" and "As he holds out his hand, I need everyone to make a Wisdom saving throw; DC is 21" - which are things done in combat in order to keep action flowing, and are things that players can generally work out rapidly enough on their own because it comes up repeatedly during said combat. I have never experienced a DM who would do something like that outside of combat, for individual one-time checks, however; I'm not seeking to argue her, just suggesting that it might be good if our combat log was made more robust and this information remained viewable there.
I agree with Piff though - as fancy as the new interface is, it slows down everything to such an egregious extent that I just want it gone.