I understand, HTML is a document but it has this disadvantages and IMO if we want to use HTML everywhere we need some default Widgets for List and Table, don't change anything about current HTML but similar on how we have a Video or Canvas element we might want something for this uses cases and not force each developer re-invent the wheel. If is not built=int he browser I would like some sane JS implementation (framework independent and without any dependencies on 100 left-pads),

This thing where each developer re=invents same thing over and over and each implementation is broken in some way it bothers me, like the search input in Youtube has a dropdown with some suggestion, that dropdown popup can get stuck open until you reload the page, so even Google engineers are not capable of implementing a 100% working simple Widget.