Does holding stocks above 1 trillion market cap still worth the risk for it's limited growth?

I'm curious how many still buy and hold individual mega cap companies like mag 7. The narrative has always been the larger the company the harder it's able to grow. The reason why we stock pick is to get that 10x - 100x returns in the long run however with the size of mag 7 is it still worth holding individual risk for a company that might not generate that expected outcome?

Is Nvidia going to be a 50 trillion company going forward? How realistic is that based on economics?