I don’t know that my absolute favorite artist has a bad song. But here are a few songs I hate by artists that I love:

Bloc Party (original lineup/first 4 albums): 3 x 3. Not sure why, just feels anxious in a bad way? Always a skip for me.

Keane: Ishin Denshin (You’ve Got To Help Yourself). This is a cover from an EP so maybe too deep of a cut, but man do I hate this track. Just feels cloying and awkward. Like they were trying to recreate the original but were too in awe of it.

Peter Bjorn and John: The Feeling. The first track from their true followup to Writer’s Block. Just feels like it’s a song that’s weird for the sake of being weird.

I’ve done it once or twice in the early days to see what was up, never since then.

The whole “25 y/o brain fully developed” thing is not something you should be putting much weight in, for what it’s worth. https://slate.com/technology/2022/11/brain-development-25-year-old-mature-myth.html

I love the idea! If there was good support from something like GrapheneOS or /e/OS I would be looking at one of these.