とりあえずAACのあるPipewireに戻ります
~$ pactl send-message /card/bluez_card.XX_XX_XX_XX_XX_XX/bluez list-codecs
[{"name":"sbc","description":"SBC"},{"name":"sbc_xq_453","description":"SBC XQ 453kbps"},{"name":"sbc_xq_512","description":"SBC XQ 512kbps"},{"name":"sbc_xq_552","description":"SBC XQ 552kbps"}]
アッハイ
PulseAudio 15.0だと外部コーデックでLDACもサポートしてるっぽいな?
https://www.freedesktop.org/wiki/Software/PulseAudio/Notes/15.0/#supportforldacandaptxbluetoothcodecsplussbcxqsbcwithhigher-qualityparameters