Over in Blighty there is a whole debate over whether you put the milk or tea in first.
Well, I seldom drink tea, and I would never put milk in it anyway, so it’s not all that relevant to me. My wife does drink tea every morning, and puts the milk in after the teabag comes out. The only times that there are floaty bits are when the milk is a day or two past its best and starting to turn.
Many years ago when I was visiting England, I’d have to make a specific request for tea without milk. As I recall, the cafes like Jolyon’s would add tea from an urn to milk in cups as their standard preparation method.