Digital only? Definitely. Subscription? Never.
I am just starting a Pathfinder 2 game and I'm using online materials alone. I've purchased the materials I need for Foundry, my VTT of choice, and Paizo gave me the PDFs. I haven't had to purchase any of the books in physical form, and I find it pretty unlikely that I will do this with any RPG in the future, except if I somehow want to read them offline.
Now as far as subscription services go, that's a hard pass. The moment we go to that model I'm off the boat right away.