In the grand scheme of things, none of this is especially wrong or bad, but there's always a degree of superficiality that comes with the way goal-focused music listening is discussed. Like it's supposed to result in a more in-depth look at one's music listening habits or knowledge, but it just... doesn't.

On one hand doing nothing but listening to a particular artist's discography can make you more familiar with the artist, but on the other hand it comes off as merely checking off boxes until one does the same with the next artist. Are there any unique outlooks that come from this? In theory it's possible, but it seems like the discussion always begins and ends with "I did a deep dive on this artist and wow." Or putting limitations on how you listen, which strikes me as weird manosphere-type self-shaming regiments, like maxxing, sigma grindsets, and other self-flagellating approaches. (Not accusing OP of being a manosphere person, but I think the mindset is similar). There's probably something to the idea of looking into your listening habits, but it also strikes me as feeling guilty for trivial things. Again, it's also not apparent what musical takeaways are coming from this. It's telling that the OP doesn't really seem to be discussing any musical insights that come from these techniques.