Aside from gaining access to the new regions (and the new pokemon within), does the expansion pass for Pokemon Sword/Shield affect the main game in any other way?
In some other games I know, having a certain DLC installed also altered some of the things in the base game (e.g. the Trespasser DLC changing some items you get as quest rewards in the Dragon Age Inquisition base game), even when you hadn't accessed the DLC area/story/... itself yet.
As long as you're not accessing the new areas, does it make a difference whether the expansion pass is installed or not? Meaning is there a benefit to starting the game with the expansion pass installed as opposed to purchasing and installing it after playing the base game?