I would assume that this is completely PS5-specific. I've really liked the overall PlayStation experience ever since the PS2, but I think part of the reason eve

I would assume that this is completely PS5-specific. I've really liked the overall PlayStation experience ever since the PS2, but I think part of the reason everything works so smoothly is that every generation is a pretty strict walled garden.[1] Not having a compatibility layer to upconvert PS4 controller input to mimic a PS5 controller removes a whole branch of code, testing/user troubleshooting steps/bug fixing, and complexity. I'm genuinely surprised that Sony built and released an accessible controller at all. This feels like a huge step for them. So while it might be frustrating to imagine having to upgrade when the PS6 comes out in the distant future, it's still a net positive IMO. [1] I'm still a little grumpy that I couldn't use the PS3 media remote with the PS4 or later, because it worked better than the ones that came after.