There's several charts, the second is: Gen Zers, Millennials Less Likely to Own Homes Than Their Parents at the Same Age which does a direct "at same age" comparison and showed that Gen Z started off slightly stronger than millennials but fell behind.

I do wonder about how they're calculating some of this. It looks like in the chart is saying 16% of the cohort born between 1981 and 1996 (aka millennials) owned a home in 2000. I wouldn't even expect 16% of that group to be over 18.