If you read my previous post, I address why a bit perfect file can sound different. You are correct that bits are bits, but not correct that noise is not a factor. Sound quality can vary among streamers. It is measurable. It is audible.
Many people here post what they believe (me included). But believing and experiencing are different things. It is true that it’s possible some of us have been deluded by placebo. But, I think there’s more than enough measured and anecdotal evidence to suggest there’s benefit to investing in a better streamer. That’s what i believe. But also what i experienced directly - when I came in as a skeptic.
Do the work. Make an honest effort to do an honest comparison. Then tell us what you heard. I’ll regard that feedback as far more valuable than telling us what can’t be. Do the work. Then post.