A family of Microsoft word processing software products for creating web, email, and print documents.
If you want to change the width of the first column without changing the overall width of the table, you must drag the right border of that column while holding down the SHIFT key.
If you want to change the width of the last column without changing the overall width of the table, you must drag the left border of that column while holding down the SHIFT key.
In both cases, holding down the ALT key as well provides more control as it causes the column widths to be displayed on the ruler.
Nothing has changed in this respect in the latest version of Word.