Is there an official update on Query Folding for dataflows?

Hi. I haven't seen something specific about query folding for dataflows the last weeks. You can keep the docs close to check modifications from this year: https://learn.microsoft.com/en-us/power-query/query-folding-basics

You can also check the power bi blog to keep up to date on the announcements: https://powerbi.microsoft.com/en-us/blog/

I hope that helps