In a better world with an actual open web, we would not have to rely on the graces of the hosting company to offer us a better UI. Our browsers would act as true "User Agents" and render the web page in a way that is best for the user.

Browsers should be able to by default pick and choose what elements of a web page get rendered, without having to reach for extensions. Browsers should be able to render things in a different order, and easily allow the user to override things like styling, size and so on. Browsers should provide this kind of flexibility by default! They should not just be canvases following orders, for the web developer to program against the user's interests.

Instead, we just punted, and handed over all of the control to the web developer. Now they decide what gets shown and not shown. They decide the layout. They decide everything!