Adult here. I have now over 10 years of experience as an adult, although closer to 20 years of experience playing video games.
There are two realizations that are needed to understand the relation of someone in this life style who is also a fan of video games.
First, no I do not have as much time as I used to have to play video games. In school and university times I would easily play over one hour per day on a week day and much more on a weekend. But nowadays, I spend 8 hours per day on a weekdays working on my job, plus a few hours doing house work. So can't play as much as I could.
But second, I also want to do other things. Nowadays I actually read much more then I used to. I also try to do other hobbies, and try to do social activities much more. I tend to spend more time with other people too. So out of my free time that I would use for video games in the past, I actually allocate that time for other activities.
I still absolutely love video games. They are a part of my life. But I probably play two to four hours per week only. These hours are few but highly meaningful anyway.
I think part of the journey for me to become an adult, to have a job, responsibilities, and such, has also been about broadening what I do, so it doesn't upset me that I can't spend so much time on video games, but rather it makes me happy that I have a fuller life.