I don’t get this, blue tooth has plenty of bandwidth... why for example, can’t it play duel channel audio along with a mic?
In anecdotal data, I noticed that my Bluetooth headphones had latency so bad they were not usable for gaming (CS:GO, Valorant). Switching the codec to aptX reduced latency noticable but also dramatically reduced quality to somewhere similar to a phone call (flat, noisy).
So that's my assumption.
Playing audio on a Homepod used to have huge latency, we're talking about 2 seconds lag, and it still had the sales. Sure thing, they have improved this with Airplay 2 but nonetheless... I'm not sure how big of the concern latency is for the music streaming (not for the video, calls or games).