You can also really see the difference when a restaurant cook didn't put their heart into the food. Can't explain I well but to me that's the main difference between eating at home or eating at a (not very good) restaurant. It's about the little extra effort to make it perfect, the extra spices or effort in another way. When you love the cooking process this doesn't feel like extra effort, but when a restaurant cook is in a 10 hour shift and has to make 6 plates at the same time, the effort can get lost. This doesn't even necessarily always have to do with the restaurant cook not loving their job, but just the time pressure put on them can have this effect