iPhone 12 Mini 5G & Bluetooth issues

After the latest update, iOS 14.4, I still continue to have Bluetooth & 5G issues with my iPhone 12 mini. So far, 5G web results have been subpar to 4G LTE. It’s almost a waste of time to use 5G.

My Bluetooth issues with older Bluetooth devices continue to be a problem with connecting then disconnecting, static or “crackle” sound during the audio, constantly trying to hardware handshake during audio transfer or just not working at all.

Yes, I’ve done every step in the Apple play book. I’ve reinstalled everything multiple times with no change.