Can you provide a source this? To my understanding, the GnuPG project (and by extension PGP as an ecosystem) considers itself very much alive, even though practically speaking it’s effectively moribund and irrelevant.

(So I agree that it’s de facto dead, but that’s not the same thing as formal deprecation. The latter is what you do explicitly to responsibly move people away from something that’s not suitable for use anymore.)

Ah. I meant in the de facto sense.