Sorry, zoomer? Not familiar with that term
The exception is special baby boom periods and their echoes, which do create some more "lumping" or births.
The worst is when people try to apply American generational stereotypes to other countries. Like, no, Hungarian "boomers" didn't grow up in plenty. The 50s were a period of terror and deprivation, not the "good ole days" of prosperity.
Should be the same as the age gap between parents and children, so about 20-40 years, roughly speaking.