edit: Intel seems to play a bit of marketing games here. (source Anand tech).
2021 H2, Intel 7: Previously known as 10nm Enhanced Super Fin or 10ESF.
2022 H2, Intel 4: Previously known as Intel 7nm.
None of these numbers have aligned with physical features on the chip for a while, so they are just an arbitrary convention now. It's better for all of the manufacturers to use the same convention.
A much more meaningful way to compare processes across different manufacturers is directly by transistor density, but the "nm" process generation naming tradition is so entrenched that every one is still using it but fudging the number in some sort of attempt to position/align their own processes against those of competitors.
Of course it's not just transistor density that matters, but also power usage and speed, and no one number can capture it all