Elden Ring and other fromsofts have the Hud disappear unless something actively happens with it sometimes. You don't see your health or mana unless you get hit or cast a spell.
Really fun Scifi book The Light of Other Days I read about this about a creepy rich family that accidentally invented wormholes to see back in time but couldn't send anything. It gets out and now everyone can view anywhere anywhen,
Pingy Putty and Reaganism would all still be in heavy effect, I can't think of a way any one person is going to bring down 3 nuclear super-war-states. We don't have any anti nuke tech eminence in shadow but nice writing prompt for potential suffering trying.
woops, my apologies it was this novel. https://en.wikipedia.org/wiki/TheLightofOtherDays, editing my previous :|