Pokémon HOME has been updated to Version 2.1.0. You can see the patch notes for this update below.
Added Ranked Battles information from Pokémon Scarlet and Pokémon Violet to the Battle Data feature.
If you’ve linked Pokémon HOME to a Nintendo Account with data from Pokémon Scarlet or Pokémon Violet, you’ll now be able to view results from your Ranked Battles in Pokémon Scarlet and Pokémon Violet.
You can view your battle results from Pokémon Sword and Pokémon Shield by choosing View Past Battle Records.