In early August 2021, Ancestry updated their terms and conditions.

If you haven't read them, see
The changes apply equally to public and private trees, as well to other Ancestry services.

Judy Russell, the Legal Genealogist summarizes:
"Note the addition of the words perpetual and non-revocable — meaning forever and ever amen and no changing your mind. And note that the last sentence, the one that had limited Ancestry’s right to keep using our materials to the cases “necessary … to provide and improve” Ancestry’s services, is gone.
Amy Johnson Crow further explains in this YouTube video:

It's too late to remove anything except photos and documents from FindAGrave. There may still be archives, but they are not routinely available.

Glad to keep my families in Reunion!