This is the original source, but since it is in portuguese so most won't understand the text and discussion I have also sourced the FAQ from where they took the information.
Will PS4 demos or betas be playable on PS5?
The majority of legacy PS4 demos and betas will not be playable on PS5. Moving forward, however, new demos and betas will be playable on the PS5.
In the discussion area of the page there is a discussion going on that this is a comeback from arrogant Sony, what do you think?
duduspace11 "Well, since we are estimating costs, Pokemon Red/Blue did cost Nintendo about $50m to make back in 1996"
Mr Puggsly: "Hehe, I said good profit. You said big profit. Frankly, not losing money is what I meant by good. Don't get hung up on semantics"
Azzanation: "PS5 wouldn't sold out at launch without scalpers."