I assume most people don’t fall into this trap where they try to get the world to adapt to their diagnosis. I think most people realize it’s something they need to work on.
I get the impression that it’s largely the people who arrive at the diagnosis after being pulled into certain online communities. The Reddit ADHD content can be wildly out of touch with reality because it functions as a space for venting and complaining, masquerading as a space for support and helpful resources.
When I was around a lot of juniors it was surprising to me that so many of them would go through the route of getting an ADHD diagnosis and then trying to get special accommodations at work for it. A lot of the workplaces were very receptive and attempted to provide reasonable accommodations, but it wasn’t what they expected or wanted from their employers. There seemed to be a belief that getting a diagnosis was a shield from being PIPed or that it meant that the employer couldn’t judge them for performance problems.