We've been there multiple times before, but here we go.Not just Hefeweizens. Read this article about Schönram brewery and look at those giant open fermenters using 34/70 brewing some of the best lager in the world.
https://beerandbrewing.com/greatest-drinkability-the-bavarian-brewers-art/
I don’t know why people fear open fermentation. I do it for all beer styles.
There is a huge difference between keeping it open during active fermentation and keeping it open afterwards.
Afterwards means instant damage, before can mean a lot of positive things.
These big breweries are all keeping it open during active fermentation.
If the sg is at 1.01 already however, it's very likely to be done or almost done. That's not active fermentation.