Pokemon Scarlet and Violet Have Auto Battles

gamerant.com:

Pokemon Scarlet and Violet will be introducing a brand-new Auto Battles feature to the series called Let's Go. Nintendo and Game Freak recently released a new trailer for Pokemon Scarlet and Violet that primarily focused on the new antagonist group Team Star and revealed three new Pokemon. The trailer made no mention of the Let's Go feature, but it was later detailed on the official Pokemon Scarlet and Violet website.

In the older Pokemon games, the only way players were able to level up their Pokemon was by using them in battles. However, newer games in the series have given players more ways to earn experience points and level up, like with Exp Share. Exp Share gives experience points to Pokemon in one's party even if they didn't actually participate in the fight. The Auto Battles will be a new way for players to level up their Pokemon in a non-traditional way.

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Pokemon Scarlet and Violet's Auto Battles are triggered by utilizing the Let's Go feature on the Pokemon that players have out exploring with them in the Paldea region. Players are able to choose any direction they want to send the Pokemon off in. That Pokemon will then spend its time participating in battles and collecting items, independent of the player character. Pokemon Scarlet and Violet players can choose to accompany their Pokemon while they're off fighting in Auto Battles, but they can also leave them to their devices. More specifics on exactly how this feature works, like how long it lasts, has not been revealed at the time of this writing.

It's possible that future trailers will show Pokemon Scarlet and Violet Auto Battles in action, but one would think that if Nintendo was interested in showing them