Nothing has been modified because no matter what they do, they can't just rewrite the game to account for the Pro still running on Zen2. That's the update they put out and that's what you can expect further down the line in CPU-bound games, that's why "futureproofing" with the Pro on release is IMO a waste of money (especialyl thinking about GTA6 which is ways off) and people should've jumped on it in 2025 with better deals and more games to actually show if it can make a truly tangible difference, not "it can sorta run AW2 at 60fps with drops and slightly less blurry image with visual artifacts but if you want some basic RT you're back to 30fps". There'll be games that run great but they'll be first party titles most likely and so far there aren't any on the horizon, what you get is the option to play 1-2-year-old games at slightly higer fidelity and if someone wants that, then fair play.
IMO, they should've put that 100$ into the CPU instead of the SSD, you can always expand the memory. I don't suppose it'll become a widespread problem but it will definitely manifest itself in select games.
SH2 on the latest patch doesn't run so hot either so we'll see about the actual Pro patch and what it changes.