As far as sports, your average engineer isn’t typically consumed by them, but half the engineers I’ve worked with from the bay seem to be fans of whichever team is doing great at the moment (warriors or giants or often the sharks).
I’ve also done more sport fishing and crabbing here than anywhere else I’ve lived.
I think the huge numbers of foreign residents have a large impact on the overall culture compared to say rural Texas, but it doesn’t seem too far off imho.
One other point is just how many super packed country concerts there are at shoreline.
Tl;dr San Jose/SV is just as country music/sports obsessed /game and fish oriented as the rest of the country (if you don’t surround yourself with non-North American engineers for eg).
Edit: on mobile, autocorrect at word.