As title above, why is advance Variation in these recent years considered strong vs the Caro-Kann, especially owing to White's early space advantage in the center, but not vs the Scandinavian? In other words the Advance variation (especially the so-called Short System, with Nf3, Be2 etc.) is considered a strong way to fight the Caro-Kann. On the other side, after 1.e4 d5, the move 2.e5 is considered weak (or even a mistake) because Black can develop his Bishop to f5, obtaining a "better" version of the Advance French. But isn't the structure with ...Bf5 then very similar to the Advance Caro-Kann (which is considered strong)?

As title above, why is the Advance Variation in these recent years considered strong vs the Caro-Kann, especially owing to White's early space advantage in the center, but not vs the Scandinavian? In other words, the Advance Variation (especially the so-called Short System, with Nf3, Be2 etc.) is considered a strong way to fight the Caro-Kann. On the other side, after 1.e4 d5, the move 2.e5 is considered weak (or even a mistake) because Black can develop his Bishop to f5, obtaining a "better" version of the Advance French. But isn't the structure with ...Bf5 then very similar to the Advance Caro-Kann (which is considered strong)?