Yeah, it's a question with a personal answer, not an absolute answer. My answer works for me, for now, and I enjoy learning what answers work for other people.

I wonder if Camus had his own answer to that question. Could Camus imagine Sisyphus happy?

I don't think rebellion or ownership are enough. Rebellion is meaningless when you're alone with nothing to rebel against, and ownership is not inherently positive.

Gods not regulating the decent is an interesting take. Can one learn to smile while falling?