To adjust the column widths, click Layout > Columns > More Columns ... Then, use the first row of the grid to select the number of columns you want to insert. For instance, for a two-columned ...
One UI 7 supports fewer home screen grid layouts than One UI 6, so upgrading to the latest release could mess up your home screen.
(Grid view on desktop doesn't have this issue because the two column layout means there are 4 articles next to the top story, which is similar to what list view is able to display "above the fold ...