No you don’t.
If your garage is not insulated, meaning it’s constructed of cinder blocks, concrete or is detached, you don’t necessarily need insulated glass. Insulated glass helps with heat loss and if you don’t have insulation in your garage door, the glass will be pretty ineffective.
Appliances in your garage can create condensation on the inside of your garage windows. And insulated glass is a solution for that. But if you don’t have appliances that create heat such as a fridge or dryer, you most likely do not need insulated glass.