Wow you stepped right into the point and didn't even notice.

Technically yes, you are composting by throwing food out your window and onto your yard. Technically yes, you are reclaiming space for insects and animals by not maintaining any area outside your house. Functionally, if you want to make compost, you designate a spot or get a container and learn anything about browns, greens, necessary turning, decomposition, and so on. If you want to help insects you might get a sod cutter and turn a section of (or all) of your outdoor space, you learn about what trees or flowers are native to your area and serve that purpose, then you plant. Unless your yard was grassland originally, there's more work to do than just let it go until code enforcement comes and tells you to stop being a turd.

The most common weed plants are indeed good for pollinators, and spread chicken bones and pizza crusts will eventually add some value to your soil. However, I don't think they bring you any more credit than, say, helping the bugs in your neighborhood by not cleaning up your food spills or washing your laundry.

Standing around high fiving because youre the nuisance house in the neighborhood who can't be assed to pick up after yourself is fucking weird. Apparently you (specifically) can do some research so maybe you ARE being intentional, but that is not the general vibe I ever get from the "I don't even mow, you're welcome neighbors!" threads like this usually devolve into.

Edit: My garden growing in my compost on my lawn with a few of our fireflies. Would make a better gif but idk how to do it.