For me, Google only sends organic traffic to my posts that are 10-20 years old (no joke). My newer content, while verified by me as indexed by Google, receives zero traffic.
For my old content, I have started to place warning banners for my users that they are reading old, and sometimes outdated content, that I only leave online for archival reasons.
It makes me wonder if Google is doing this with my little blog, is it doing the same more broadly? I don't believe it is providing a good search experience to its users anymore.