Here is an article from NPR regarding New Zealand's largest news publisher Stuff, they quit posting articles to Facebook in 2020 and as result saw readership rise.
[
wnyc.org...]
Just over a year later, in July 2020, Stuff launched a new experiment: its website, newspapers and magazine stopped posting anything at all on Facebook and its subsidiary Instagram.
The result:
Overall traffic rose, even though social media traffic fell
Fears that Stuff would collapse were "baseless"
I think one thing that is clear from this article is that "sharing*" your content on Facebook comes at cost. A cost that is difficult to evaluate and is likely higher than one realizes.
* Note that "sharing", is not really sharing but rather giving, as there is no reciprocity when it come to Facebook.