Not big on generation labels though, they feel like a failed experiment. People are born every day of every year and our experiences overlap in a gradient. They don't separate into distinct portions.
The baby boom was an actual phenomenon, but every label afterwards feels arbitrary.
I agree that it's not a useful metric to apply to an individual. "Ok boomer" aside, there is too much variation within a generation for it to be a useful way to draw any conclusions about a single person.
Where generations are useful is in demography. There is no strict dividing line between a lot of kids of demographics, but categorizing them can still give us useful data for studying populations