The engineer who sat next to me at my old job didn't use an adblocker. She also would just ignore anything on the screen that wasn't directly related to her task. There'd be "please update" OS popups or "do you want to install a plugin for markdown?" ide prompts on her screen for days. When I'd roll over to work on something at her desk I'd be like "how do you work like this?" she was like "like what?"

She was pretty good at engineering and generally smart. I don't know how she did it.