What do you mean by a storage hybrid system?

I read a text there was the laptop has a storage hybrid system. Do you think he has an SSHD?

or just that the laptop has an SSD and an HDD?

This is the first time I've heard of storage hybrid systems and I can't find anything meaningful in Google either. You could be right that it is an HDD that simply has a small SSD built into it.

I agree with the question.

Whatever that may be.

But SSHDs are usually no longer installed that way.
It just didn't catch on and the technology is too complex

If you hear something for the first time google is asked. Google found wintotal.

WINTOTAL says:

Inexpensive HDD storage capacity paired with the speed of an SSD: Hybrid hard disks (or SSHDs, "Solid-State Hybrid Drives") combine the advantages of both drive types in one storage medium.

An SSD integrated in an HDD practically takes over the caching of the disk. The HDD retains its capacity and is also treated like an HDD. The SSD does not appear, you only notice the increased acceleration of the disk.