usually nutrient burns the tips of your leaves chech thr bottom with a pocket microscope or maybe with the naked eye for any insects such as thrips , etc...
True, but that's usually the case with seedlings, because they can't metabolize the large amount of nutes and immediatly start to die off at the tips.
If the plant is sturdy enough to metabolize the nutes, you'll just end up with a case like above, where the leaves are clearly much too dark green, indicating excess N. When the plant can't take care of the surplus, it will produce the burns ar random locations, usually in the lower third of the plant.