It depends what you mean by food waste OP.
Technically banana skins can be made into chutney, so is it a waste to throw them away?
If so, then yes I do waste food. But as little as possible.
Bread crusts get saved and left to dry out for days and even weeks in a bowl on top of the bread bin. When the bowl is full I whizz them onto breadcrumbs and freeze them to be used for meatballs, breaded chicken, fish cakes etc.
Cauliflower and broccoli leaves and stems are used to make soups.
I make pesto from wilting salad leaves.
I peel and freeze black bananas and any other squidgy fruits for smoothies or jam.
I try not to peel veggies but if I do peel them (eg my kids prefer mash with no bits of peel in it - fine) I sometimes turn the peels into crisps by popping them in the oven with some oil, salt and pepper.
If something is about to go off, I cook it and freeze it if I can’t eat it that day. I’m pretty free and easy with best before and use by dates. If it smells fine it probably is fine.
Our fridge is always full of tupperwares of leftovers. Somehow we always get through them all.
I am pretty organised with meal planning. I love cooking and I love the creative challenge of finding ways to use up leftovers. And after I’ve spent so long making something (and it’s delicious) that’s inventive not to throw it away.