Not all Pokémon will carry over to Pokémon Sword and Shield - Polygon

Pokémon Sword and Shield will alllow you to import Pokémon from your Pokémon Home, but only if they can be found in the Galar Region. This is for production time and gameplay balance.

New Pokemon “Sword” and “Shield” Expansions Will Add Over 200 Existing Pokemon – The Geekiary

Why Pokémon Fans Are Already Disappointed by Scarlet and Violet

Everything we know about Pokemon Sword and Pokemon Shield. - Polygon

Pokémon Sword' And 'Shield' Review Round-Up: Here's What Critics Are Saying

Review: Pokémon Sword and Pokémon Shield - Polygon

Pokémon Sword & Shield guide - Polygon

Not all Pokémon will carry over to Pokémon Sword and Shield - Polygon

The Pokémon Company settles Pokémon Sword and Shield leak lawsuit : r/NintendoSwitch

It's the End of a Pokémon Era

Early Build Of Pokémon Sword Allegedly Leaked Online

Pokémon Scarlet and Violet: Exclusive Demo Preview

Pokémon Sword & Shield guide - Polygon

Pokémon Sword & Shield guide - Polygon

Ball State Daily

Walkthrough - Pokemon Sword and Shield Guide - IGN