If I'm understanding you correctly, you're saying you don't like how big and bulky it is? It's worth noting what you've linked is more for industrial use. You might see something like that in a server rack for example, but Brits don't have them in their homes.
In British homes/offices you'll see something like this[0], this[1], or this[2].
This is fair. It's similarly long, but I would say not as bulky nor ugly (and aesthetics matters a bit, as these are often in homes), so I just wanted to clarify we don't have those metal things in British homes.
What do 6-outlet strips look like where you're from? I'd never considered British ones to be a problem because you throw them behind the setee or under a desk, and probably because it's all I've ever experienced. Also, in practice you usually only want smaller strips with 2-4 outlets, where the size matters even less.