When cleaning your stove glass, wait until it is cool or warm to the touch. If any liquid product sizzles when applying then that is too hot to clean.
We recommend this product for stubborn build up of creosote: https://forrestpaint.com/product/stove-bright-cleaners-specialty-products/glass-cleaner-for-wood-pellet-stoves/

                   
Remember to keep your wood at least 1" away from the glass and to always burn wood with less than 15% moisture.
This will help to keep your glass clear and you will need to clean it less.