Mahasi Noting Method, One-Mindfully, Zen

I have a question about how the Mahasi noting practice can be applied informally to daily, mundane affairs, rather than during formal meditation. As a Theravadin, I find that this practice is similar to DBT skills. I'm currently undergoing therapy and learning the skill of "one-mindfulness," which is essentially monotasking: doing one activity wholeheartedly at a time. It's also somewhat similar to Zen practice. I have a hard time focusing on simple tasks, such as reading books or listening to audiobooks. I think this may be the long-term effect of social media use, exacerbated by the habit of doomscrolling. My question is, how do you apply noting to informal practice? Is it possible to mentally note everything or practice sati/remembering throughout the day?