sizes={"(max-width: 750px) 100vw, 613px"}

is this not allowed in next/image?

sizes={"(max-width: 750px) 100px, 613px"}

works as expected and

sizes={"(max-width: 750px) 50vw, 100vw"}

but not when I use both vw and px it allways picks the 100vw