IMO - Service and quality has been going downhill at Disney for years - I finally stopped going in 2016.
I cant be the only one.
We go to Disneyland and in no way is the place going downhill. They are adding new rides all of the time and keeping the old ones in tip top shape. Dining options are improving as well. Maybe you are talking about Disneyworld. I suggest you try Disneyland as you would probably never visit Disneyworld again.