The explanation is wrong though. The employer pays you a fraction of the value your labor produces for them. Being enjoyable or not has nothing to do with it. You'd get paid for doing a valuable thing you could enjoy doing the same way nobody is going to pay you for doing something you don't enjoy that has no value for anyone.
I've been using Linux for the past 6 years (on and off only the first two of those) and I have never had this happen to me. Maybe when I was using Ubuntu it was harder to find good answers that were not specific to someone else's usecase because of the nature of Ubuntu forums.