Suggestion: PSN PC client for PC+PS5 players?

Hey GGG, I'm aware of the MTX limitations between PlayStation and other platforms and the friction this causes.

I don't know how feasible this suggestion is, but seeing as how Sony first-party games do exist on PC now (and some require a PSN login), I wonder if an alternative PC client that only allows login via a PSN ID could be looked into? Presumably, it would be walled into the Sony ecosystem (possessing only MTX purchased with your PlayStation account), but it's still an incredibly big step up from the total lack of interoperability we have today.

Many of us would like to be able to seamlessly switch between playing on PC and console without having to repurchase stash tabs (and MTX cosmetics), and this would give PlayStation+PC gamers a way to do so like Xbox+PC can today.

(I know Diablo 4 has solved this problem, and that may simply be because that game is not free to play. If that's indeed the primary point of contention, I also wonder if that can be worked around by paying an optional one-time account unlock fee on PSN to unrestrict your premium account features / coins cross-platform.)

I'd be curious to know if either of these suggestions interest others as well. Hoping for some encouraging news regarding this problem in the future, though I'm aware it may never be fixed.