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.

Pokémon Scarlet and Violet are peppered with complaints about performance - AUTOMATON WEST

Ask a Game Dev — What is triangle count? If pokemon from Sword and

How To Get Popplio Into Pokémon Sword & Shield

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

Not All Pokémon Will Carry Over To Pokémon Sword And Shield Polygon

Pokémon Home guide: How to use the new Pokémon mobile and Switch app - Polygon

No, Pokemon Sword and Shield is not Using the 3DS Models : r/3DS

Pokémon Sword and Shield - Wikipedia

Early Build Of Pokémon Sword Allegedly Leaked Online

Since many people on the outside seem to misunderstand what the backlash is about, I made this chart to visualize the extent of the situation : r/ pokemon