For a quick clean, a little dish soap diluted in warm water can also be useful, as long as you rinse thoroughly to avoid residue.
And what happens when dirt gets between the glass?
This is where things often get complicated… and this is where we feel needlessly frustrated. If your oven allows it, you can remove the door to access the inside of the glass. With the oven turned off and completely cool, open the door, lock the hinges, carefully remove the screws, and remove the glass. Clean it with a soft cloth and a mixture of warm water, baking soda, and a little white wine vinegar, then carefully reassemble everything.
Please note: Each model is different, so please read the instruction manual carefully before use.