Have Pokémon games downgraded in Graphical quality since the Nintendo Switch

These images are from the earliest releases to the latest. And I’ve been a fan since X and Y and played all the games of Pokemon.
But looking back at the games on switch like let’s go, and looking at the trailers. The graphics and Pokemon animations were better than sword and Sheild no?

Then Legends ARCEUS in my opinion has better graphics and animations than even Scarlet and violet.

BDSP are at the bottom of the barrel but was very consistent with what it did compared to other games where the quality fluctuates.

I know ZA isn’t out yet but the trailers speak for itself.

If I were to rank from best graphics to least it would be.

1. Let’s Go Pikachu and Eevee
2. Legends ARCEUS
3. Legends ZA
4. Pokémon Sword and Sheild
5. Pokemon scarlet and violet
6. Pokemon BDSP