Let’s shelve for a moment the way each country computes er finagles GDP is not at all the same, for the sake of making a higher-order point.
Since GDP is as meaningful as an indicator of economic gameplay as the score in soccer is as meaningful as an indicator of soccer gameplay, the importance of economic growth in GDP is as meaningful as the growth in goals scored in a game of soccer.
Just in case you don’t follow the corollary, they are both meaningless in describing the quality of economic gameplay and provide no reliable indication of future performance, the supposed premise of economics.