I'm not sure where you live, but if you can get the Rain X juice in either pink or orange, it works better than the cheap blue juice. The pink/orange freeze at much lower temps than the blue, plus they have some Rain X detergents and water resistance ingredients to help keep things clean longer.
If you haven't had to squirt for a while, the little hose might have fallen off the wiper jet. If you have an assistant, you can have them squonk it while you lift the hood to see if it's squirting onto the deck below the wipers and if you can see the little hose lying loose. If you don't have an assistant, you just have to try to squirt more juice and look for a puddle.
The fluid is coming through the jet (not a lot though) but it doesn't project it onto the windshield. It just dribbles around the jet housing on top of the hood. Underside and hoses look OK, the way they should. I didn't notice any fluid dripping from hose or anywhere else under the hood. But didn't give a good look yet. Being that the other jet works as it should I don't think this is a pump issue, unless each jet has it's own pump, which I would find odd.
I know of the pink/orange stuff, but I have prolly 3-4 gallons of the cheap blue stuff right now. It has never froze on me in the decades I've been driving though (but there's a first time for everything). So I wanna try unclogging the jet or some other mechanical fix before I go spending a dime. It's an old beater.