Driving is awesome, but when you are driving because you are commuting, or you have to drive your kids to kindergarten/school it becomes a chore and you no longer enjoy it.
I love programming. But when I have to do it for someone else to earn a living, and do it in a specific manner that they dictate, it feels like a chore and I no longer enjoy it.
Having a workplace that is fun and enjoyable isn't about doing the thing you love. It's about a lot of other things, such as the people you work with, the company culture, how much freedom and choice you are granted.
Obviously, if someone is going to pay you to do something for them, they're going to want you to do it their way, in the manner of their choosing. That's kinda the point.
The conclusion, of course, is that what you are really enjoying is the freedom to do what you want...and what you want just happens to be this given activity. Once you're doing it for pay, you're trading that freedom for money (capitalism in a nutshell, trading freedom for money). All the trappings of the specific nature of that trade are just window dressing and detail.
This applies to literally anything anyone does as a profession, all throughout history, even/especially "the oldest profession".
Yep, it's like playing a game that you like while having someone watch over you saying, "no don't do that, no that isn't good enough, you are taking too long, redo it all by this deadline", and the ever present threat their assessment of your playing will have on your ability to live your daily life.
In the actual nature of my work, I love it. I'm a CAD drafter and 3D modeler. I got started on this path as a little kid when I loved to draw and design Star Wars ships, especially floorplans and schematics of them.
If I could do that all day, it'd be heaven. Instead it's always far less interesting things, on tight deadlines, with shitty software, and it has to be done in the least efficient ways possible, and I'm given vague and conflicting instructions on what is even wanted.
But it pays better than the Star Wars ships, and I like having food and a car and beer.