That is for bottled sold water, not from water bottles that you refill.
I’m sure using plastic anywhere in any form contributes to microplastics absorbed into ones body, but there is probably a difference? It’s just important to be specific what a study says and not accidentally make assumptions.
Also though, I’m gunna keep using my refillable plastic bottle. Trying to manage intake of microplastics based on how much plastic I interact with seems tedious to the point of being impossible. Plastics are the kind of thing that need regulated. And while I might spare myself some microplastics hypothetically, it’s not like the water bottle won’t break down into microplastics in the dump if I replaced it with a metal bottle.