I think it's not the bottom of the fall, but I do think it's a pretty clear fall.
Facebook is the new MySpace, and Instagram is not attracting the newer generations. The metaverse is a wild moonshot to invent a completely new market and platform that Meta alone would control and of sufficient size to replace the inevitable decline of Facebook/Instagram ad revenue.
Personally, I don't believe people want the metaverse, and if it succeeds, it'll come at the cost of coercion via marketing overload.