>>62859414True. There's also consumption duration to consider. Visual art grabs people's attention far more immediately than music usually can. It's why video game box art and movie posters are so important for getting customers in the door. However, it's consumed almost entirely within the moment that it's noticed. You can continue to examine it to find and appreciate finer details, but the main idea is immediate.
Music on the other hand actually requires time to pass for its consumption. Therefore, it's unlikely for good music to reliably grab viewer attention as fast as the internet's attention economy demands. Even if someone entered a stream at the very start of a 4 bar loop, they're very likely to have left before it's finished, and never even get the complete idea of that one segment, let alone the whole song.
However, music is also usually what sticks with people the longest, makes them nostalgic, and brings them back to something. People have typically listened to the OST of any beloved SNES game for far more time than they've actually played it. It's considered an indispensable part of a classic game's soul, even if it's technically secondary to what a game is. Even if you adore Yoji Shinkawa's art, you probably don't find yourself visualizing it completely unchanged in your head while at work. But you probably do find yourself humming Encounter or Duel, and you might find yourself replaying a game and experiencing its visual art again soon after.
tl;dr, I think there's a kind of symbiosis between the two mediums which encourages the consumption of each other in the time window each is weak at. But it's unlikely for someone to consider that dynamic when trying to get people's internet attention in the immediate, which visual art is usually the correct answer for. So vtuber models can become extremely visually loud, for better and/or worse, but they still have a royalty free BGM that everyone's heard before playing behind them.