Get a headset that has Faststream or bidirectional APTX-LL A2DP vendor codec, and use it with BT stack that implements these codecs (e.g. Linux/Pipewire). Such devices are very hard to find, and aptx-ll in most devices is not bidirectional. I know only some headsets by Avantree that have it.
Or, wait for a few years for Bluetooth 5.2 LE Audio be available in consumer devices.
Or, wait for a few years for Bluetooth 5.2 LE Audio be available in consumer devices.