LOL I immediately thought about Spotify when reading the question.

Spotify was once an ultra fast app. Now it takes 15 seconds from launching the app to starting your music.

What I find funny is that Spotify used to be super fast at the inception of the service.

I would say there is some truth to what he says :

https://www.sektion-landwirtschaft.org/en/news/artificial-sweeteners-create-deceptive-sweetness

Although it’s not like a definitive answer from the scientific community.