Are you sure it doesn’t work with repeated or sustained effort? Maybe it’s too short, surely one single 60-second sample isn’t enough to know, right? I was just googling a little, while there isn’t a ton of research, there seems to be growing clinical evidence that mindfulness & meditation practices do help people with ADHD. I don’t know that the 1 minute dot counts as mindfulness practice, but I’m also not aware of reasons to count it out.

https://www.webmd.com/add-adhd/adhd-mindfulness-meditation-y...

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4694553/

https://www.healthline.com/health/adhd/adhd-meditation#get-c...