It is exceedingly likely that if Satoshi was not Hal Finney, s/he has probably been somewhat active (under a non-Satoshi nym, obviously) this whole time.
https://towardsdatascience.com/stylometric-analysis-satoshi-...
But there are incentives to maintain it as a separate cover identity, of course. Ultimately I personally don’t give two fucks about who Satoshi is/was but the fact that it has become this central witchhunt and front page news has taught me a tremendous amount about brand building and the power and necessity of identity and narrative in our society and world.
Do you remember Satoshi Dorian Nakamoto? It turns out he lived near Finney. Maybe Finney knew him and thought it was a nice name.