Holistic data across the entire animal kingdom is difficult to come by, but everywhere we look we're finding hints that there are serious issues. On just insects:

> A reanalysis published in 2017 suggested that, in 1989–2016, there had been a "seasonal decline of 76%, and mid-summer decline of 82%, in flying insect biomass over the 27 years of study". The decline was "apparent regardless of habitat type" and could not be explained by "changes in weather, land use, and habitat characteristics". The authors suggested that not only butterflies, moths and wild bees appear to be in decline, as previous studies indicated, but "the flying insect community as a whole"

That's not a small, random decline - 70-80% of insect mass has disappeared over a single generation.

https://en.wikipedia.org/wiki/Decline_in_insect_populations#...