Your claim is both true and false; both good and bad things have come out of video games, especially when it comes to how they tie in with the brain. On the benefits side, we have a 2022 study by the National Institutes of Health titled "Video gaming may be associated with better cognitive performance in children" which analyzed roughly 2,000 kids and found that those who played video games for 3+ hours a day ended up performing better on cognitive tasks and working memory compared to those who never played.
The majority of us who play video games, I’d imagine, aren’t doing it for any mental benefits, but I could be wrong. Most of us play them for the pure enjoyment we get out of them, which is derived from how they make us feel. That leads me to my next source, The Benefits of Playing Video Games by Isabela Granic, Adam Lobel, and Rutger C. M. E. Engels from Radboud University Nijmegen. In this article, they talk about research suggesting how video games can be used to regulate emotions in a positive way. An example of this was reported by the American Psychological Association, where reviewers found that playing puzzle games improved players’ moods, increased relaxation, and reduced anxiety levels overall.
With that being said, I also think there are some negative side effects of video games on the brain. According to the Harvard Health Blog article, The Health Effects of Too Much Gaming, there are concerns about the negative consequences of excessive play. It highlights a potential downside, such as disrupted sleep patterns, which can lead to mental health issues.
Truthfully, in my opinion, I think video games can be both a good thing and a bad thing. It all boils down to how you go about using them. I’ve found myself staying up too late playing games and then feeling bad the next day because of a lack of sleep. But that wasn’t the video games’ fault; it was my own. At the same time, I feel like my alertness has possibly increased from playing fast-paced games that require me to make split-second decisions and keep me on my feet.
https://scholarshipweekend.oglethorpe.edu/wp-content/uploads/sites/21/2024/02/Meier-JEOReadings-2024.pdf
Video gaming may be associated with better cognitive performance in children | National Institutes of Health (NIH)
The health effects of too much gaming - Harvard Health