While I don't have an answer for you, I'd recommend just digging up the trees entirely and checking with Isabelle after you clear each area you were planning on developing to see if your rating has dropped - that way if it has, you just need to plop down a few more trees to make up for the drop.
My left JoyCon started drifting and just like you, I tried everything to fix it but nothing worked, so I ended up buying a replacement pair - I've had the switch since launch so figured it was about time anyway, and now everything plays smoothly! Hopefully it stays that way lol
I'm interested in joining~ Cass from Fairytopia
Don't have a list of items I'll bring but as I have a lot of high value I'm just going to choose whatever 12 items and bring them, including whirlpool baths, shower booths, elaborate kimono stands etc :)