maybe I am on an old version, but I dont get that at all. here is my info:

    OneDrive version: Build 23.214.1015.0001 (64-bit)

if I try to close, I get:

    Are you sure you want to close OneDrive?
    If you close OneDrive, files in your OneDrive folder won't sync with your
    files online.
    [Close OneDrive][Cancel]