Cans of spray paint are considered latex. Really latex would be rubber, most paints contain none, except maybe Flexseal.
Latex paint is a general term which covers all paints that use synthetic polymers such as acrylic, vinyl acrylic (PVA), styrene acrylic, etc. as binders. This is what always used to confuse me, as the term "latex" is applied to most water-based paints, regardless whether the can says they are 100% acrylic, latex or vinyl styrene. It is only because natural latex and synthetic polymers share the property of looking milky when wet, and clear and flexible when dry, that they call this whole family of polymers "latex" in the paint US industry.
Our brothers and sisters in the UK use the general term "emulsion" instead of latex and is a more accurate term, but it is the same type of paint that we term “latex” paint in USA.