There is going to be something that would not have existed without LLM because there wouldn't have been enough resources to create it before. Probably already is. Some of it will be amazing, although most of it probably not.

Example: Qobuz has no official Linux client, but there's https://qbz.lol/ which it seems to me is mostly vibecoded. It's not perfect, but it works pretty well and can do some fancy stuff like bit perfect DAC passthrough up to 192kHz/24bit.