Read the primary source rather than the write-up and the two do not agree, so here is what is actually in it.
Food noise is the best term this community has produced and it describes something the trials did not measure well: the constant background computation about food that most people with obesity live with and most people without it do not believe exists. GLP-1 agonism reduces the salience of food cues in the reward pathway rather than simply reducing hunger, which is why the reported experience is silence rather than willpower. It is also why its return on dose reduction is the first thing people notice, well before the weight moves.
Where I think it is weakest: the comparator does most of the work in how this gets reported, and it is not the comparator most people think they are citing.
The bit I cannot resolve on my own is whether the quiet is the same mechanism as the appetite suppression or a separate one, because they seem to come and go on different schedules. Not looking for reassurance. Looking for the part I have got wrong.
Note on sourcing:
Figures above are from the primary publication rather than the press summary. If a number here disagrees with one you have, post yours and we will work out which of us is reading a secondary source.