An answer from 10, or so, years ago was that feedback is bundled together across all the forums and then delivered to the appropriate departments. I have seen quite a few things that either make one a Nostradamus or they definitely do read feedback, but as noted there is no verbal confirmation. If they agree you might know quite a while from the feedback as they work on the pipeline with a scheduled plan, otherwise.... you don't know lol. More frustrating might be "why" you don't know, you won't know why.

More feedback would be nice. I imagine they don't like to respond as people will negatively address any non-positive response and will take any positive response, any, as a sort of promise. Doesn't change I'd still like more feedback though lol.