Also I don’t understand your point, it totally depends on how strong the difficulties are whether you might have ADHD or not. „Difficulty in concentrating“ is not a binary metric.
"Implying ADHD is an excuse is a deeply concerning statement." This is exactly what I mean. OP says that we should check if we have ADHDH because we have difficulties starring at a progress bar for a minute and instead want to read the news or other activity. That is not ADHD.
I was diagnosed with ADD as a kid, it make my life considerbly harder and was not to my benefit. Once I left school the "disease" evaporated.
Interesting that it disappeared :-)
I wonder how many kids would not be considered having ADD if they got more say in how their school day looked. Maybe sports before sitting still and reading?