Dopamine isn't really the reward drug that people seem to think.

But in the 90s and early 2000s, mounting evidence challenged that idea. Turns out that when you shut down an animal’s dopamine system, they enjoy their rewards just as much but lose all motivation to seek more.

In other words, dopamine doesn’t make you like something, it makes you want it.

https://www.nationalgeographic.com/science/article/science-behind-dopamine-function