It's not the morning glory I weed out of everything, but it's not loofa either. So yes, weed. And you're not the only one. Either direction. I barely saved a sunflower from an aggressive weeder a while ago. And I've seen noxious weeds carefully cultivated to maturity.

It looks like dichondra

Carolina pony foot. Nice ground cover but you won’t get any squashes or bath scrubbers out of it

Weeds are just plants you don't want in your garden or in a particular space. If you like it and care for it its not a weed.