Yes, there are one or more threads on the forum about how true music aficionados prefer music through headphones or big speaker systems vs. hearing aids. Sound is not one-dimensional, though, and there are many aspects to listening via BT in a battery-limited device. d’ Wooluf is nurturing a thread devoted to the forthcoming promise of Bluetooth Low Energy Audio, which is something entirely different from plain old BT LE (the people who cooked up the nomenclature are crazy!). LE Audio and the Future of Hearing
The BT SIG site has a link to a blog post (from another website) on BT LE Audio that makes it sound like the technology is going to solve every problem known to man: Bluetooth LE Audio: Where Innovation, Market Needs and Inclusiveness Converge - Imagination (imaginationtech.com) Edit: Sorry! The link on the BT Sig site is to another website, imaginationtech.com)
The How To Geek site, which usually has very good information, has a post from earlier this year laying out why BT LE Audio is important. They might have it a bit wrong, my understanding is that with BT LE Audio you can either get much longer battery life in your listening device or if you are willing to sacrifice battery life, a higher bitrate and better audio than with the classic SBC BT codec - but I may have it wrong and perhaps BT LE Audio can’t do aptx audio, which is the best audio codec? Someone like @d_Wooluf would have to straighten my meandering vague understanding here out: The How To Geek article claims classic high-bitrate BT audio is still likely to be better sound fidelity than the upcoming LE Audio standard: What Is Bluetooth LE Audio, and Why Will You Want It? (howtogeek.com)
Latency is all relative - if there is no video to compare it, too, and all your audio is coming from the same source any built-in latency shouldn’t be a problem. BT devices using the proprietary Qualcomm aptx protocol can have latencies as low as about 50 ms, about the range that humans can’t detect the latency, but I don’t know of any HA’s that support that protocol. The Phonak Paradise HA’s?
Edit_Update: BT SIG comparison of SBC (classic BT audio) to LC3 (LE Audio codec)
The speaker says a 5.0 rating is PERFECT audio reproduction, 4.0 is excellent, so the LC3 audio quality is supposed to be very high indeed at a reproduction rate of 1.5 Mbps uncompressed sound. From third video down to the right on following page: LE Audio and the Future of Hearing | Bluetooth® Technology Website
@ellisonvoice See also the review, too, from the NY TImes Wirecutter. The writer claims that the innards of the sound equipment that you’re using make more difference than any audio codec to the listening sound quality What You Really Need to Know About Bluetooth Audio | Wirecutter (nytimes.com)