The Bowers & Wilkins PI7 should be a true alternative to the AirPods Pro, with 9.2 mm drivers, Qualcomm aptX Adaptive support and the ability to maintain a 24-bit/48 kHz connection. The PI7 supports wireless charging and Audio Retransmission Plus through its charging case too, which will allow you to use the earbuds with devices that do not support Bluetooth audio. Alternatively, Bowers & Wilkins has also released the less flashy PI5, but these still cost £199/€249/US$249.
https://www.notebookcheck.net/Bowers-Wilkins-makes-big-promises-with-the-PI7-its-latest-pair-of-TWS-earbuds-PI5-available-as-a-cheaper-alternative.533617.0.html