You still need the phone to transmit Bluetooth audio from. It's not like wired headphones, or even wireless headphones, play music on their own.

Yes, there are exceptions. Yes, I am salty about the lack of headphone jacks .

TBH USB-C to 3.5mm adapters are better anyways IMO, they're very small and just stay attached to my headphones, have a better DAC and amplifier inside than most onboard 3.5mm jacks ever did, and it never gets stuffed full of pocket lint which was always an issue on phones that had an onboard jack.

Just get an USB-C soundcard, don't be silly. There's countless ways the surveillance state is becoming worse but audio jacks are not one of them. 3.5mm jacks are very error prone and mainstream people didn't really use them anymore once wireless in ears got good battery life.