A foregrip that has a small deployable bipod is widely used around the world, and one of the first products is known as the "grip pod".
But it isn't inherently that much larger than a regular foregrip, as you can see below:
The reason why the QBZ-192's "grip pod" is so big is because that particular unit is the same silly "integrated grip pod" they had back from the 2019 parade which have some communications control buttons installed in it as you can see below
.... To be honest, I don't have an inherent problem with grip pods, but installing those extra buttons on the grip pod is a waste of space and poor ergonomics. There's a reason why we haven't really seen it widely used in the PLA afterwards, and why we've actually instead been seeing smaller foregrips be used on QBZ-191s in some PLA service instead, because smaller foregrips really make a bit more sense if one desperately wants to put some kind of foregrip on your rifle.