Not only a fashionable heel aesthetic at the moment, but block heels are also great because they make walking and standing a little bit easier vs other heel types.
Very high heels refers to both the very high heel of the shoe (usually above 6 inches) as well as the high heel type. There are many different types of very high heels.
Of course, heeled boots are just popular on high boots too. You can find all kinds of heel types from ankle boots, knee high to thigh boots, and in all different heel heights.