Boredom is a bad feeling “by design” - it makes us go out and find new experiences. If, in this current world, you’re in a situation where you really can’t get out of, we instinctively try to find distractions.
Thinking about stuff is also a distraction. And for some people there’s nothing to solve, really, as they’re okay where they’re at in life.
That’s why I feel like you’re projecting a bit; it’s not intolerable, it’s just… nothing. So if you have no other option, why not play a game?
I’m currently not in the camp of “nothing to think about” - I could sit for hours and do nothing except think. But there were (and will be) times in my life where that would not feel good - I wanted experiences!