No, in a lot of areas when you are dispersed camping you are allowed to make fire rings. You could be camping 20 miles deep into the woods. There will not magically be a fire ring there for you. However, if there does happen to be a fire ring close by, use that one and not create a new one.
I like the stupidly literal interpretation that you should not make a fire ring exactly in the same spot as an existing fire ring, but that any other spot, even abutting an existing fire ring, is permitted.
Fire risk is just too high, even if rings exist. Use a camp stove. If you really want a fire pit, go to a non-dispersed/non-backcountry campground that has nice large fire pits in cleared areas (still not zero risk, but less risk than some of the janky small rings I’ve come across).
I think you mean that we should only use extant fire rings and not make new ones?