I have been writing HTML for two years now and am at a point where I understand the significance of semantic HTML, not only for readability for accessibility. I always use tags for their intended purposes (you will never find me using a div as a button), because I know how many accessibility features come baked in to the tags themselves. I also am comfortable with adding in aria tags in situations where my functionality extends beyond the intended use of a given element. I am very familiar with interacting with the DOM both with vanilla JS, and through the virtual DOM and React.