Just checked, and I DID NOT get the PS4 version of Bugsnax along with the PS5 version. My bad. I've been conditioned to think cross-buy titles were automatically on all platforms with Plus, because, well, they almost always were. I get why this would be PS5-only though.
If you check the PS App buggsnax have 2 entries, one that list as PS5 and PS4 and the other that we got on PS+ that is PS5-only.
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."