Is this really a trend? I'm getting very strong neumorphism vibes from it: A contrived trend that never really worked, looked outdated from the start, and never got main stream.
The real vs Dribbble ratio of the examples in this post points in the same direction.
I do think the 3d graphics are a trend, which fair enough have often a sort of clayish aesthetic, but I am very skeptical that will become a popular all encompassing UI style.