I have an answer for this, and your other thread about your Galaxy Buds. I had the same issue. They would link when in the case (which was on or by the laptop) then disconnect shortly after putting them in. The reason no one's answers are working for you is because it is not a software issue. It is a hardware issue. I had recently switched my card to an Intel ax200, and noticed that when I did this there was only one antenna hookup. The one antenna does just wifi, and the other antenna connection does wifi and Bluetooth. I had tried for 2 months and had the same issue. The one night though, I heard the sounds coming through the earbud that I had just taken from the case, but still had in my hand right next to it. I slowly pulled it away only to hear the sound cut, then slowly put it back only to hear it come back. I opened my laptop and switched my antenna from port 1 to aux, or what might be port 2 on some cards, and they have worked perfectly ever since, maybe a 10mbps drop in my wifi. It went from 224mbps to 210mbps. I can live with that if it means having functional bluetooth.I (like you) had tried every suggestion out there from different driver and bluetooth stacks, to hours of windows and Samsung tech support. The one night the Microsoft people even kept me on the phone for 3 hours and eventually had me upgrade to the new version of Windows 10 v. 20H2, which reloads every driver in the system. It's free and nice to have done because it fixed other problems, but yours is probably hardware. It's not some off name laptop, it's a 17 inch HP, but they probably save quite a bit of money every year only putting in one antenna vs 2, when you think of the volume of laptops they produce.