Anything cheaper than PS5 pro and is as good or better performance-wise -> market gonna have a fun time! No one can claim after that PCs are expensive to build/buy than a console and consoles are better for gaming. The line is going to be completely blurred.
Steam Deck made PC handheld gaming possible. I can only imagine what will be possible with a full fledged machine. And if they will release SteamOS for other hardware - that'll be extreme win for PC Gaming in many years.