I think you should reconsider some of your life choices then.
You're spending a large part of your life working. Why wouldn't you choose a job that's fun?
> job and tasks at work also happen to be an activity that's fun to you but that's super rare, and it's best not to spend your life searching for that magic workplace where that could happen, but simply to learn to separate and containerize work and fun.
This is some of the worst advice I've ever seen. Those workplaces are not rare at all!
So instead of spending your life at a fun job your advice is for people to spend their life at a job they don't like? Jeez. That sounds like a life worth living for sure.