Can you find Shiny Pokemon in the Demo of Lets Go Eevee/Pikachu?

Question

Just wondering if it's possible because the eevees in the demo have an insane encounter rate

Answer 1

In this demo, Professor Oak meets you in Viridian Forest and suggests you do some research in the forest. The forest contains different Pokémon to how they are in the game itself. This demo is not compatible with Pokémon Let's Go, Pikachu! or Let's Go, Eevee! so all Pokémon and items obtained within the demo are not saved. Shiny Pokémon can be found in the demo.

Source

As the demo is not compatible with the actual games, there is no way to move the shinies out of the demo, unfortunately.

Hope I helped!