Is M2 really better than M1?

I'm curious to understand the merits of M2 over M1. Could you elaborate on why some experts believe M2 is a more comprehensive measure of money supply? Is it because M2 includes savings deposits and other liquid assets that M1 excludes, making it a more accurate reflection of the total amount of money available for spending? Or are there other factors at play here? I'd love to hear your thoughts on this matter.