I have friends that played League for thousands of hours and they share this exact sentiment
Counter-Unpopular Opinion: Wasting time isn't something bad, after a hard day of work, or after school, you just want to relax, videogames can provide a better entertainment and be more healthy to your state of mind than social media, like twitter for example, it depends on how the individual manage this sort of things, at the end of the day, everything would rot your brains, you will age, and your neurons would die doesn't matter what you do really, so just enjoy life as you please.
And also, it depends really, you can get something useful from videogames, for example i learned english by playing videogames for thousands of hours, it also helped me to develop creativity (in my line of work, having creativity is one of the most important things), damn, some even can teach you lessons that could help you in life, all of this while having fun, you will say "the same could apply to social media", but the problem is that social media also hurts your psyche, using twitter and being exposed by constant agressive behavior from actual real people, not just a line of code, can demoralize anyone, so i think that social media hurts you more and rots your brain even more than videogames.