The 5 is already somewhat enshittified. The Non Standard USB power that makes you buy a propietary PS is one example (which I found out after buying one for my son).
I agree. Pi5 apparently uses 5v@5A max, which is outside the usbc-pd specs. Not sure why they didnt go for usbc-9v in and use onboard components to convert the power to something lower for cpu ( which i assume it already does from 5v )