How to see hard drive size in Linux?

Question

linux

I'm going to buy a laptop, the characteristics indicate the volume of the hard disk 128GB ssd + 1 TB hdd
I see only what is in the photo

Answer 1

Well, there's only one disc. And so:
fdisk -l

Answer 2

As a rule, you need the volume and percentage of employment, preferably in a digestible form so that it is more practical
But naturally from the task