You will get more edible leaves by cutting back. The taste of the basil leaves can change if you don’t cut them off too.

Or you can do what I do, realize you don’t use enough basil to justify growing it for food, then continue to grow it anyway and let the plant flower so the bees can have it. My local bees love when I let my basil flower.

Your plant has already bolted hard. Once that happens, the taste of the leaves becomes bitter and far more unpleasant.

If you just want a few basil leaves on occasion as a garnish, you should probably let the plant keep doing its thing. If you want good-tasting basil in volume, replant.

You should prune it before they happen ideally, but you can use the buds to make "capers" if you wanted to reduce waste.

Something like this https://www.wildfoodie.co.uk/post/pickled-dandelion-buds-three-ways

Pinch it back but once it starts bolting it’s going to keep trying, and the stems will be woody. There’s ways to discourage that behaviour (lighting/fertiliser/temperature) but I don’t recall exactly. i use the flowers as garnish.

Collect seeds to replant later.

As others have said the flavor and mostly the texture can change after going to flower like this. If you are using you for teas, tinctures or infusion is actually kind of great. The flavor is stronger and more floral. It's great

Yeah, just pinch them off. You could prune it back to a division too.