Much like others, Shield was a game that was just... not executed well. It is the first game that took me over a month to finish the story because I just lost interest in it. After, I didn't play it. I played the game more when Isle of Armor came out and about the same with Tundra. I enjoyed the DLC far more than the base game. So yeah, I will probably quit playing Pokemon Shield. While I will keep the game, unlike Let's Go, I don't plan to play it again unless I just want to replay the game which I am certain will be less than any other pokemon games.
I used to shiny hunt a lot more, as well as breed, but I just can't be bothered in Shield.