i didn't know. thank you for correcting me.
is it right to assume that cloud saving is now also free on the PS ecosystem?
I don't think it was that surprising we got half life game. After all valve always use half-life to introduce concepts.
what i would be surprised is us getting a half-life 3 without any "gimmick"/new tech. Valve did the lab and had several partners in VR before comepting themselves, like HTC Vive.
assuming steam hardware survey isn't too far from reality we can say:
Despite occulus comeptition Valve headset is the 3rd most used one at around 16% of the player base. Which , IMO, is Huge for a 1000€ product. Oculus quest 2 (300€) and rift S (450€) only have around 22% of the market each despite being half price of index.
I also want to add that valve's comeption in VR space (16% vs 50% of occulus) is by offering better products not by fleecing costumers by using exclusives (i can use my rift s to play valve's Alyx)
Valve doesn't compete only via the Index, but also SteamVR. They were in competition with Oculus even in the earlier days of their partnership with HTC (hence Vive being pushed on the Steam storefront).
Whilst Half-Life has been used to push new gameplay concepts, the fact that it launched within the window of the Index can't be overlooked. As you said, it's perfectly playable using an Oculus headset, and yet:
A) They didn't put the resources forth until it aligned with the launch of their own competing hardware.
B) None of the applications Valve created have made it onto any other competing VR storefronts, whether that be on PC, Quest, PSVR, etc. They have been functioning as a platform holder, creating platform exclusives.