This has been available for a while but it's great to see some acknowledgement especially since the most recent data set was stuck in 2019 for a while.
Here are the datasets: http://download.kiwix.org/zim/stack_exchange/
It's not clear to me why the data set shrank between 2019/3 and 2022/6; was something excluded? Compression improvements?
> stackoverflow.com_en_all_2019-02.zim 2019-03-12 19:53 134G
> stackoverflow.com_en_all_2022-05.zim 2022-06-17 12:36 75G