We are crossing posts. Beginning to understand. Using the left switch you can lower the front left and the rear left window. So that means that both fuses are OK. Which must mean that the right switch is bad. (I think from looking at the pic below you can just plug in the right switch on the left side and test; if it stops working, it is bad. You cannot put the left switch on the right side (I am guessing) because of the two extra pins. But putting right on the left side might work.)

Is this your switch? https://www.pelicanparts.com/More_Info/0008208210.htm?pn=000-820-82-10-M253&gclid=CjwKCAjw0N3nBRBvEiwAHMwvNvyd4wXvu_32UeDs-YpMRu_Y4_OHKIIs6wJG5teCaagmoAGLEkkz-BoCLw0QAvD_BwE