Alright here are the results: The ML 5909 works with Windows 11 without the dongle, it pairs easily and has a stable connection. The 200ms latency is also gone, you can now watch movies/youtube without dongle. But at least on my device (Lenovo Legion Slim 5) I had a lot of pops and clicks, like some sort of static, and the quality via apple music desktop was not good. I dont know if windows is using some sort of internal EQ if it detects a headset or it is something Lenovo related. So on my part I will continue using the dongle. Hope this helps at least somewhat