One of them is philosophy. There is a great deal of benefit and pleasure that a person can derive from learning about about and understanding the arguments that have been made across the centuries.
Another is physical activity. It feels great to move your body, it makes you so much happier than sitting at a desk.
Another are video games that stimulate your brain in an amazing way. Another is spending time close to nature. Another is talking and listening to people.
When I come across a person that tells me "But what would you do if you had more free time?", I realize it's like this because people can't imagine a different world. They don't know how to live freely. So they willfully fight to maintain this broken world, insisting that it's the only way.
So I do my work, try to get it done as fast as possible. I earn a lot, but my work makes no difference to anyone's life. If I could get 1/10 of what I earn but without having to perform all this theatre, it would be better for everyone.