There’s a less scientific one where a guy girth hitches around a stout tree branch in the same manner and then pulls on it with a hand winch.
He pulls until he is afraid he’ll break the branch off (the tree is bending a good bit) and the carabiner has embedded itself in the wood somewhat, at least leaving a decent dent.
Afterwards, the carabiner is not bent and opens, closes, and locks as if nothing happened.
I think the concerns regarding side and edge loading around trees suitable for climbing are in good faith but overblown.
I still use a stainless delta link but it’s somewhat out of habit and just liking how massively strong they are, and the unscrewing doesn’t bother me.