My degree is in Information Systems with a concentration in Emergency Management. OODA is one of the concepts I took away from school and internalized. I don't even think about things in terms of OODA anymore, I automatically assess and dissect the situation at hand or the information presented. Essentially, OODA is a clean framework for critical thinking. It's a gut check to ensure you take into account all known factors.

Taking OODA literally in your day to day would likely be burdensome but learning to build mental models that allow you to quickly connect dots is a huge asset. I oftentimes opt to not worry about things but I do it consciously, I have a mental model for cost (i.e. risk) and often I put things into the rounding error bucket.

A more concrete example is when I'm networking: Once I hear what a person does I quickly assess what I know about their industry, what I consider to be most niche or cutting edge about that knowledge, and then riff on it to establish that I am a person worth talking to. From there it's a constant loop of "what can I do to help this person?", "how can I leverage this connection to help my business?", with the occasional "who could I introduce this person to for some sort of mutually beneficial win?"

This mental framework for networking allows me to quickly get to meaningful dialogue, get to a point of action, and part ways. At events my contacts tends to be high quality as a result and I can work a room faster which allows me to make more connections.

Having a similar frameworks for business decisions, meeting management, sales, etc allows me to manage a lot of areas of my life relatively effortlessly.

edit: By effortlessly I mean stress free. I essentially go on auto-pilot.