Can you get Arceus without cheating anymore?

As of my limited knowledge up to September 2021, it was still not possible to obtain the mythical Pokémon Arceus without activating a cheat mode or using a cheat device in any official Pokémon games. Arceus is generally acquired through special events or distributions by the game developers.

This information may have changed, so I recommend checking the official Pokémon websites or social media accounts for the latest updates on obtaining Arceus.