> These include their own DAC
Isn't that exactly why audiophiles - in the broadest sense, not just the golden cable types - stick with jack headphones? The DACs and amps built into headphones, or even earbuds, being very likely subpar compared to the one they can pick separately.
Headphone DACs/amps have been a thing forever and they're typically the size of a pack of cigarettes.
(Disclaimer: I made peace with BT since getting the Sony WH-1000XM4 earbuds, and later WH-1000HM4 headphones. I got them originally for the noise cancelling and LDAC support, but they're good enough that I don't hear a major difference with my friend's fancy Audio Technica)