People who have quit gaming did you experience this lack of concentration too?

I have quit ranked/competitive gaming and do only casual gaming whenever I get some interest. Honestly I was happy that I've quit gaming as a whole because it was a real addiction. Countless number of times I have uninstalled games only to get so tempted that I would download them again despite them taking 1hr to install.

From that kind of situation to come to this situation where I only play whenever I want to, is a great progress I felt I have made. I have got lots of time on me as expected, but I don't spend it wisely and infact in more "brain-off" fashion eg scrolling, chatting on discord, youtube etc.

Now I feel whenever I come across anything that needs my brain to be spent upon, I feel so reluctant to do high brain activity. I feel there's lot more difficulty concentrating and being patient with my task.

Is this because I have quit gaming? (sounds crazy I know) that my brain has become rather less active than usual?

I recently come across a random study on surgeons that game a bit during the week are doing better at their job than the ones who don't game. Not sure how of it is true but I sure have come across concepts like gaming keeps your brain active and make you perform.

Take this entire assumption as a grain of salt because I haven't done any huge experiments nor do I have any conclusive evidence but a small hunch that I just came across. I just wanted to know your experiences after you quit gaming.