Android 13 supports Bluetooth LE Audio by default, although some features are Bluetooth chip reliant rather than being available to every Android smartphone. A recent Android Open Source Project code change suggests that Google is planning to bring higher fidelity Bluetooth LE Audio to the Pixel 7 series, including next year's Pixel 7a.https://www.notebookcheck.net/Google-Pixel-7a-Pixel-7-and-Pixel-7-Pro-could-support-higher-fidelity-Bluetooth-Audio-option.644061.0.html
How about 3.5 jack? It supports high res audio right out of the gate. BT is horrible technology, that should have been forgotten in 2000s