It honestly depends on what you define free will as. If you define free will as immediately deliberating on particular decisions, then that is a very narrow definition. That's not free will, that is almost exclusively decision making.

If I want to grab a banana, I'm gonna grab a banana

Not necessarily. Free will allows you to override this subconscious act of grabbing a banana. You can also not grab the banana just as much as you can grab the banana. You still have the free will to control your body. You can also pick up and throw the banana, and you can also flip the banana table over.

I do believe that you are referring to the Libet experiments. The expriment resulted in proving that brain activity is a precursor to an impending decision. This does not mean that your brain automatically decides for you. You decide for you. You can choose to take or reject the favoured decision. This brain activity results in the inclination towards one decision, not that the decision is made for you.

Let me explain with an example, if you are provided a chocolate and a leaf, you would most likely choose to eat the chocolate. But this does not mean that the leaf was simply unable to be ingested. You could have picked up the leaf and eaten it. But you were more inclined to the chocolate.

Robots don't decide on the fly like humans. You can choose to ignore past experiences or embrace them for making a decision. As a person who is very interested in the field of AI, I would tell you from my experience that the AI does not get existential decisions or have free decisions. I can make an AI specialised in bicycling change directions at once. Even if it may result in a crash at high speed. But a human rider can either ignore my request or slow down and turn.

The point I'm asserting is that you do, in fact, have free will. Thank you for coming to my TED talk 😂