I have a folder of MP3s, some of which date back to 1999, just a few years after the format was popularised. Most of them have utterly terrible names (think RIDEONAM.MP3). I think at this point they might even survive the heat death of the universe. And they’ll still be terribly-organised.
Picard sometimes falls short on cover arts and track names of some niche or non-english albums because of that mp3tag with discogs is sometimes needed
For Linux there’s puddletag, which is very similar to mp3tag
puddletag was actually based off mp3tag, but even has stuff mp3tag doesn’t have. highly recommend.