My “new” iPhone is probably so old that it doesn’t add much insight to what’s going on. But I got my wife’s old iPhone 6S (bought in 2015) upgraded to iOS 14.2, paired it to my ReSound Quattro’s, changed various settings and programs in the Smart 3D app and listened to brief parts of a Windows Weekly podcast streamed directly from the Apple Podcast player and the sound was great-no static or cutting out. Only updated and paired the phone today so did not get to try any older versions of iOS 14.x. Since I’m only using the 6S as an “iPod” I don’t have any experience with phone calls.
You’re ignoring this member’s posts.