Small mistake, but kind of important for level cap purposes: The PokeEarth Fortree City page says that RSE Winona's Altaria is level 34 when it is actually level 33. https://serebii.net/pokearth/hoenn/3rd/fortreecity.shtml#gym
That’s because you can get a gift Arcanine in Let’s Go Eevee even though Growlithe is exclusive to Let’s Go Pikachu. The same is true for Kantonian Persian (Arcanine’s counterpart) in Let’s Go Pikachu despite Meowth being exclusive to Let’s Go Eevee.The version exclusives page for LGPE is missing Arcanine.
They aren’t exclusives. It was a mistake from NoA https://www.pokemon.co.jp/ex/bdsp/ja/features/211110_01/