I feel like it would be a good way to EV train If you do
yeah you don't get evs from auto battles
They dont gain EV-points through overworld battles.
No ev’s from auto battles. There should still be plenty of trainer battles and wild encounters to get you ev’s though
Auto battle does not give evs for beating the Pokémon
Source
No EVs are gained from Let's Go. This is probably to prevent massive EV gain early game with little effort.
