Long ago, Excel offered a full screen mode. The Ribbon would completely disappear and you could get the maximum number of rows in the grid visible. The feature was removed in Excel 2013. Today, it is back! At least in beta. Take a look at how Full Screen Mode in Excel works.

Link to the old help topic about full screen mode: https://support.microsoft.com/en-us/office/switch-to-full-or-normal-screen-view-in-excel-cbf43625-3fbc-48ca-9ed7-1fc678f3a0cc