These days Vermintide 2 with its endless hordes and mechanical skill ceiling have been drawing me in (around 700 hours clocked so far). Feels like a game tailor-made for people with ADHD, considering there's barely a millisecond of gameplay with no action, at least on the higher difficulties

As a kid I would switch a lot, but God of War and the Devil May Cry series drew me in, for similar reasons to Vermintide these days. Was also partial to some Unreal Tournament and Quake multiplayer, I think highly mechanical games tend to work great for restless people like me since it's a good outlet for my fidgeting ticks!