Umbrella style fixings should work well on plasterboard, the weight of the cabinet is partly supported by the wall.
Do you mean this kind of concrete based wall? (the brick is the external part)
External Masonry Cavity Walls
www.knaufinsulation.co.uk
This is how my house is made as far as I know.
What I was trying to say before is that, apart the first image you see in that link, there is a stick frame structure in my knowledge, that is the real structure, whatever else is around is just for thermal insulation and sound isolation (wind for example).
Now, the way to attach things to the wall can be different, but it's all due to the weight to hold I believe.
So my doubt was how can I make sure to drill appropriately, after having checked that there is no water pipe etc behind the plasterboard.
If you need to do it for simple shelves, probably the plasterboard is enough, though it's better do not rely on it.
If I drill up to the concrete, then that would be in the case of kitchen shelves, or for heavy/many books but in that case I would simply buy a standing library to make it simple. It requires a decent driller and long screw guides.
Then I saw this video, I wonder if this is normal:
They didn't drill up to the concrete, but I wouldn't know if there is concrete behind or not, certainly they didn't care and I wonder why.
(Sorry for the basic video but I couldn't find a better one in a quick search)
Another doubt comes from why I didn't see someone drilling up to the concrete, but only on the wood stud/nogging... Is it not better to drill up to the concrete directly? In this way you can also avoid to miss partially the wood stud/nogging, which will just ruin it.