Looks like you already decided...I fall on the other side of the fence on this opinion. To me, it’s less about parsing out listening environments and more about intentions.
if your intention is to get your music out there, then the more platforms the better...they are all entryways to lure in a potential fan to dig deeper.
I think of it like Facebook v Instagram v other platforms. Some people post the same thing on all, others use one for one thing and another for another thing, but if you aren’t a Facebook person you won’t get to see the content posted there...if you are a consumer of all platforms it can be annoying to see the same posts on multiple platforms so I would expect the user to get choosy and only follow one account.
for me, I do this for fun but I’d like to connect more w people who like what I do...and for this, I think the best model is to provide short tastes. I believe in giving away your best stuff since once you get a fan you’ve made that connection...I don’t do this, but find many people who navigate social media properly suck me in that way. I think people shoot themselves in the foot by introducing themselves w a 20 min clip since it is hard to really catch someone w something so lengthy in our world w such short attention spans...but again, intentions...if you are just looking to get it out there then get it out there. If you are looking to build a fan base, you’ll need to think about the full user experience for a curious potential fan...how are you catching their attention, then how are you holding it and directing them to go deeper?