No means an expert, but the vast majority of "Squirters" are obviously pissing. We just don't look or care where the fluid originates.!
I've seen squirt up close and personal (one even into my mouth. That was trippy). and it's not a jet.
Girls that pee out of delight usually a "spending a penny" and again no gushing.
Not taking anything away from pee videos 'cuz that's what they are
.