select the Grid Column you want to move to the top, select the Mobile view, and under the Layout settings you will see a field titled Order. Set it to -1 to move it to the top.
if you replace those Text Blocks with a Headline Block, first off in the Block settings you can change the Element to Paragraph. Set your alignment for desktop. Then with the block selected switch to Mobile View, and the Block Settings will move to the Top Bar, where you can change its Mobile Alignment like so: