Bulbasaur and Squirtle with the Gigantamax Factor are available as a Mystery Gift in Pokémon Sword/Shield

[Pokemon Trainer]

With the new update for Pokémon HOME, two special Pokémon (Squirtle and Bulbasaur with the Gigantamax Factor) are available as a Mystery Gift in Pokémon Sword and Shield.
Both Pokémon can be reedemed until June 30, 2021.
Note: another Mystery Gift of the same Pokémon is also available in Pokémon HOME

 

[Rayquaza]

Got both of them!