It could also be worth talking first to a clinical psychologist. They're less about the drugs and more about the analysis, and sometimes that's able to get you working with just a 'software patch.' Sometimes, though, when you've tried everything and your brain still isn't doing the thing, medication can be absolutely lifechanging.
As the saying goes, if you can't make your own neurotransmitters, store bought is fine.
Stimulant therapy, on the other hand, is effective to a degree that every other mental health intervention wishes it could be. I am a relatively conscientious high performing software developer with medication, and borderline unemployable without it. Night and day difference.
Therapy and education is more appropriate for the people around the ADHD patient. Getting a sense of empathy for their situation and learning how to generate an effective context for them to operate in is incredibly valuable.
I've also developed a kind of higher standard for the games that I allow to take some of my time.
Praise be to Valve, as Proton has freed me from the tyranny of Windows.
And honestly, I will gladly sacrifice some CPU power just to keep myself away from gaming.
I picked up new things by making an habit out of it, such as reading at least a few pages of a book every day. It's cliché, but setting medium to long-term goals also clarified what I wanted my days to be made of, so now I'm very focused on a personal startup project.
Bonus advice that may not apply to you at all: don't be surprised if relatives tries to keep you from changing your habits, or if you find yourself distancing away from friends, it's a feature of improvement not a bug.
The U series are "low power CPUs". They can do a lot more than they could in the past, but the H series are the actual successors to the M series. It's why the 10980HK is still the top performing of Intel's CPUs in a lot of workloads (quite significantly in some cases, we're talking 60% reductions in compile times for large C++ projects, like Chrome): https://youtu.be/pdO4u87UCYI?t=346 , and for that workload even an older 9300H handily wins against their current efficiency flagship in the 1185G7.
You are trading off a lot of power for improvements in power efficiency.
This of course has two huge caveats:
1. I didn't have a gaming addiction in the first place, evidenced by the fact that I have a Nintendo Switch that gets played in short bursts, rather than constantly.
2. I work with embedded systems/hardware, so I need to have an actual workstation area to keep the tools (debugger probes, power supply, oscilloscope, etc) on. The embedded systems curse of always needing more ports has been a pretty effective anchor for keeping my workspace in the same place as my PC, and if it wasn't, then I'd probably get more "I should spend all day today playing games" desires