Eliminate Interference in Bluetooth Audio Output

This sort of implies that there are unrelated things that wouldn't affect the question. But that presupposes absolute confidence that they are not related.

Frequently here, we find that people miss things that they think are not related. That is often exactly why they can't find a solution. They aren't able or interested in pursuing possibilities that they have ruled out, without any reliable testing or investigation to prove them unrelated.

That is why we almost always expect questioners to follow the guidelines, which spell that out in detail: