Yes, that means your pixel height is 768 pixels. At this resolution you may not (and likely will not) see many tracks in the Tracks window .. if I understand your original question.

Even if your screen is HUGE the computer is spreading 768 pixels across that screen (as far as height). So what happens is things just get bigger, instead of more of them fitting in the same space. In this scenario you could have a commercial Jumbo Screen and you would see no more tracks than you currently do .. they would just be bigger.

You mentioned that your icons seem huge; this is what made me think this was the problem.
If you want to run a 40" screen you need a better video driver to make it worth it, otherwise you are just making your notebook screen bigger (not better or more accurate).

/I assume this is a notebook only because of the 1360/768 resolution you mention.

FWIW On this system I am using a 1920X1080 screen resolution and only see 11 tracks, so not a whole lot of difference.
I have larger resolutions at work that I can test on, but thought I'd post my results for my resolution.

I do not work here, but the benefits are still awesome
Make your sound your own!