Question: are pokemon shiny in the overworld?
Answer: It should be noted that Shiny Pokémon don't appear in the overworld sprites, but can once you interact with the Pokémon similar to how it's done in Pokémon Go. The chance of finding a Shiny Pokémon randomly in Sword and Shield is the same as in X and Y, 1 in 4096 or 1 in 1365.33 with the Shiny Charm.