Vanilla is notorious for this. Vanilla extract tastes basically identical to real vanilla and is fully artificial (no vanilla pods involved in making it). I like to make crème brûlée in which it's a distinctive flavor. I sometimes use real vanilla pods, but hot damn are they expensive. Most of the time, it's just the extract.
Don't agree that vanilla extract is fully artificial; that would be vanilla flavouring. If you sell it as vanilla extract, I expect it to be extracted from vanilla pods.
And I don't agree that even vanilla extract from pods tastes like vanilla pods. I don't know a way to get the flavour of pods without using pods.